Home Maritime Resources
Ship Models Machine Tools Other Stuff Site history

first published in autumn 2006
last updated 12/10/24

  Wespe-Class Armoured Gunboat: The Model 

Introductory Note

Work on this model began in autumn 2006 and then progress with various long interruption for personal reasons and due to diversions, such as the construction of tools and machnies described elsewhere on this Web-site. While you will find below a step-by-step description of building the model as it progresses, this is not a continuous 'blog', so watch out for the date on the beginning of paragraphs to identify new material. For ease of reference the following table allows to jump to the various sub-sections.

Scale
Materials
Hull and superstructures
Main gun
Deck Furniture
Skylights, etc.
Ships' Boats
Assembly
Crew


updated 20/12/21 updated 03/10/20
updated 14/03/21
updated 03/10/21 updated 02/23 updated 11/10/24
updated 16/06/24

Scale

The scale chosen for the model is 1/160, which admittedly is somewhat unusual for a ship model. However, the reasoning behind this choice was that a large selection of N-scale railway figures is available that eventually will crew the ship. There are also space and portability consideration, which are important for someone, who has to move from time to time for professional reasons.
The model will  be a waterline model. This will allow a dioramic presentation of the finished model. Besides, the hull below the waterline is not quite so graceful. Above the waterline the hull is also more or less prismatic, with vertical bulwarks and virtually no sheer. These parameters together call for a bread-and-butter construction.
The building drawings are a combination of re-drawn Admiralty plans and scans thereof. These are printed to scale on the laser printer and the print-outs glued on top of e.g. the MDF board to serve as a guidance for cutting and sanding.

Materials

Choice of materials
I had been contemplating a variety of materials for the hull; for instance Plexiglas® layers with bulwarks made from brass foil. In the end, I choose MDF (medium-density fibre) board, which is available in thicknesses down to 1 mm from architectural model supply houses.  Other parts will be constructed from or covered with Bristol board, which is also available in various thicknesses (or rather weights per square metre). The bulwarks etc.. will be made from Pertinax® (phenolic resin impregnated paper, FR-2), which is available in thickness's down to 0.1 mm. Bristol board and then Pertinax® are easily cut with a scalpel, a razor blade or scissors and will not crease or dent as metal foil might. I currently have no facilities for photo-etching large parts, but if I had, perhaps I would have made the bulwarks from brass still. The other advantage is that Bristol board can be readily and permanently glued using white glue. Bonds between large areas of metal foil and Plexiglas® might become detached, though the plating on the steam-tug, made from copper foil, has lasted now for nearly twenty years. Pertinax® can be glued using cyano-acrylate or epoxy-resins. The dinghy of the steam-tug had received planking made from Pertinax® and glued with cyano-acrylate glue.
While I have been shying away from thermoplastics, such as polystyrene, on account of it being suspicious to be not 'permanent' (e.g. the articles by Dana Wegner), practical experience shows that plastic models built over 35 years are still intact. So I may reconsider my position in this respect. Polystyrene, of course, has several advantageous properties.

Some thoughts on Etched Parts
Some people refer to the process of making photo-etched parts as chemical milling and that is the way I view it; a process to cut out and shape parts that are too small or otherwise to delicate to handle conveniently with other manufacturing processes. Unfortunately, the employment of this process moves much of the modelling work onto the computer, as the patterns or masks now are produced with the help of a drafting program. These masks are largely developed by scaling the contemporary drawings and drawing the respective part over it in a different layer. These parts are then composed into the actual mask. Of course, 'left' and 'right' sides have to be drawn separately, if the part is to receive surface-etched detail. A strict procedure of copying and mirroring has to be adhered to in order to achieve a perfect line-up. Much thinking has to go into the best shape of parts and some experimentation. The etching process is not so well controllable, as a machine tool, at least in the simple set-up I am using. The best thickness of interlocking slots or the drawing size to achieve cut-outs of a specific dimension and similar features have to be found by trial and errors sometimes. Literary it is often 'back to the drawing board'.
This set-up is only suitable for dip-etching. Commercial companies use foam or spray etching, which work faster and produce less undercut. I decided to work with very small 'frets' only, the size of one or two large stamps. This reduces the cost of material, if something goes wrong and the smaller size seems to make it easier to get uniform results over the whole 'fret'. I bought second hand a UV-source for exposing printed circuit board. It has a timer and hence makes the process more repeatable. The developing and etching vessels are plastic film tins, coming from the standard film rolls (don't get any new ones since I have switched to digital, of course). The brass is bought in a ready-sensitised state, so no messing about with UV-sensitive lacquer is needed. Much experimentation went into a suitable way of making the masks. Eventually a newly bought ink-jet printer produced sufficiently uniform print-outs on overhead foil, but the resulting masks are not really perfect. However, I did not want to go a commercial photo lithography company for them.

The hull and superstructures

Autumn 2006 - The basic bread-and-butter construction of the hull is shown in the pictures above.
The Barbette mainly consists of a semi-circular breastwork armour, backed by hardwood and by an open space covered with thin plate. The latter presumably to retain splintering wood in case of an impact. Since no tube of suitable dimensions for the breastwork was to hand, I made a short laminated one from Bristol board glued together with white glue. The edges were soaked in thinned white glue before being trimmed down on the lathe. The tube then was varnished with filler for wood before the edges were sanded. Finally a half-circle was cut from the tube on the jig-saw. More wood-filler was applied before final sanding. After cutting in half it was glued into place. The inside of the barbette was lined with hard-paper to give a smooth finish.
The fore-deck has been covered in a sheet of thin Bristol board and the camber of the wooden decking built up with an additional piece of board and putty (I am using fast drying bodywork putty from car repair suppliers). The anchor pockets have also been lined with thin Bristol board, but Pertinax would have been better for this.
All surfaces that would have been iron plating, will be covered in thin sheets of Pertinax. The necessary holes for portholes and other opening will be drilled or cut before the sheets are fixed. In this way the barbette was lined with sheets of Pertinax, as was the deck-house.










Cutting the layers on a powered fretsaw

Sanding the sides of each layer vertical on an improvised disc sander
The first layers
The barbette and pockets for the anchors cut out
Milling slots for the rubbing strakes
Improvised drum sander to work the inside of the barbette
Shaping the body on the new shop-made disc sander
Tube made from laminated Bristol board
Trimming tube on the lathe
Drilling the hawse pipe on the horizontal milling machine
Deckhouse partially clad in Pertinax

January 2017
Most of the decks were plated and this plating was covered in oil-paint that was mixed with sand and cement in order to provide a certain corrosion resistance and above all a better grip in wet conditions. A modelling plan drawn by Wolfgang Bohlayer shows wood on some decks, but evidence that since has become available shows that this was not the case. Linoleum decking apparently was never used on these boats. However, as the model will show the boat in its original appearence, the plating was reproduced by engraving fine lines into then sheets of Pertinax. All decks, including that of the barbette will covered in this way. The exception is the deck above the foc'sle that a cover in planks, presumably to reduce wear, where the anchors were worked. This planking was laid-out in a radiant pattern, which seems to have been more resistant to the gun-blast than the more common parallel layout. The planks were also reproduced by lightly engraving the plank seams. In reality these seams would have been more or less flush with the deck, depending on the temperature and humidity, but a light engraving adds some life to the appearance.


Progress in constructing the hull
Engraving plating and planking
Excerpts from contemporary drawings Barbette
Toner-trasnfer printing of bulwark layout

The barbette - The floor of the barhette is partially covered in planking, presumably to protect the armour-steel deck underneath from the damage that might occur, when the heavy shells are handled. The steel deck underneath and in front of the barbette armour-belt is slightly sloping to deflect incoming enemy-shells from the ammunition storage-rooms. Within the barbette this is filled with timber to make a level floor. The interpretation of the various items that can be seen in the contemporary drawings is not straightforward. However, one can see a hatch that gives access to the crew's quarters (where also the hand-cranks for turning the gun-carriage is located). Then there is a round hatch for hoisting up the charges from the powder-locker below and a square hatch for hoisting up the shells. From the drawings it appears that these hatches were covered in steel-gratings. There is a further hatch with a double-lid that, according to a hand-written notice on one drawing is a man-hole leading to the ante-room of the shell-locker. However, as it is not drawn in the cross-sections we do not know its height. There are also a couple of racks for shells and some other rack-like features, the purpose of which I do not know - perhaps for tools needed in handling the shells. Unfortunately, there are no photographic images that show the rear of the barbette.  Stairs leads down from the bridge into the barbette. In addition two ladders allow quick access from the deck.
The floor of the barbette, which apparently did not have any camber, was built up from two layers of Pertinax one representing the steel-plating and engraved accordingly, the second cut out and engraved to represent the wooden flooring. The construction of the various hatches is described below.

Bulwarks, hull- and deck-plating installed
Making and installing the hawse-pipes
Scraper for half-round profiles
Rails and rubbing strakes installed
Toilet evacuation pipes
Milling the steps of jacobs-ladders

May 2019 - The main-deck plating, which had already been prepared a long time ago from a piece of bakelite (see above). The holes for the various fittings where marked out over a drawing and then drilled. The translucent property of the bakelite is very helpful for marking out. Once glued on, the deck was carefully sanded to the contour of the hull.
I spent a lot of time deliberating the best way to make the plating of the hull and the bulwark. The shape is quite simple, as the sides are vertical from just below the waterline (probably to facilitate the production of the armour plating that needed to be curved in only one direction). The original idea was to cut the plating in one piece from brass shim stock. This would have resulted in near scale thickness of the bulwark plating. I considered this too flimsy, even if the handrail was soldered on. Another option would have been to use 0.13 mm styrene sheet. Again I considered it too soft. Bakelite sheet of 0.1 mm thickness would have been closer to scale, but rather brittle. For practical reasons I decided to use 0.2 mm bakelite sheet.
The layout of the freeing ports, the location of stanchions, the ash chutes, toilet drain pipes, and port-holes were drawn onto an expansion of the bulwark that was developed from the original drawings. The drawing then was laser-printed onto an overhead projection foil (remeber these ?). This foil was taped to a piece of bakelite sheet and the drawing ironed onto it, using what is called the toner-transfer method.
The plating was cemented to the MDF hull using cyanoacrylate glue (CA). I am not very fond of CA glue, but it forms secure bonds with bakelite.
On the prototype, the bulwark plating was attached to the hull by an angle iron (8 cm x 8 cm) running along the top of the hull. I simulated the vertical part with a 0.5 mm wide strip of self-adhesive aluminium sheet into which a row of rivets had been embossed. The horizontal part would disappear under a thick layer of tar-based paint that was mixed with sand and onto which sand was dusted to provide a non-slip deck.
The hawse pipes were made from some 2 mm x 0.5 mm brass tube. First the angle with the hull was cut and then an oval ring from 0.4 mm copper wire was soldered onto this surface. The part was then taken into a collet on the watchmakers lathe and drilled out to 1.7 mm ID. Finally, the funnel shape was formed with diamond burrs and polished with silicone burrs. The hawse-pioe then was cemented in place and the end above the deck ground down in situ flush with the deck. The cover on deck is an etched part I made already several years ago. It was cemented on using CA and then another funnel was shaped with diamond and silicone burrs.

Next step was to install at the bows the fairleads for mooring cables etc. These were milled and filed from 0.8 mm thick sheet of Plexiglas®.
Then the rails on the bulwark in the rear part of the ship were installed. The rail also serves as a rubbing strake and continues to the anchor-pocket at the bows. At first the bulwark and rail (0.4 mm x 1.7 mm on the model) caused some head-scratching and concerns for the stability of the arrangement. I though about cutting a longitudinal slot into some rectangular styrne, but finally decided to make it in two, with the half glued inside and outside to the bulwark that have been designed higher for the purpose. In this way a 0.4 mm x 0.7 mm styrene strip could be glued all the way to the outside of the hull. A similar strip was glued to the inside. The half-round profile was shaped using a scraper made from a piece of razor-blade and held in pin-vice. The profile was shaped after attaching it to the hull, because it was easier to clamp the rectangular styrene strip while glueing. The glueing was effected by infiltrating CA into the joint between the styrene strip and the bakelite bulwark.
Arrangements varied somewhat between the different boats of the WESPE-class, but there was a WC for the officers in the deckshouse on the starbord side and a WC and pissoir for the men and petty officers on the port side. Each had a half-round evacuation pipe rivetted to the outside of the hull. The pipes were protected against damage by a wooden fender. After a few years of service, a strong wale/rubbing strake was added to the boats that also widened to a kind of sponson at the stern to protect the screws. However, this did not exist at the time in which the model is represented.
Steps ready to be installed
Jacob-ladders Fairlead for mooring hawser
Laser-cut lids for the freeing-ports Installation of frames and lids
Laser-cut doors 
Decks-house and back of the fore-deck with the doors installed

June 2019 - There are two jacob-ladders on each side of the hull, a wider one underneath the door in the bulwark and a narrower one a bit forward. The steps probably were made from wood and had slots towards the hull to prevent the water from collecting there and to prevent the wood from rotting. The steps are made from 0.8 mm thick Plexiglas® and the slots milled in. The sheet then was sanded down to the width of the steps and the ends rounded. Then individual steps of the right thickness were cut off on the lathe set-up with a mini saw-table. Unfortunately, the steps could only be cemented to the hull using cyanoacrylate glue, there being no positive locking. A bit of cellotape provided a guide for alignment. Nevertheless, the procedure was a bit nerve-racking.
Further, fairleads for the aft mooring hawser were installed. These were made from oval rings of copper-wire. The rings were formed over two 1 mm-drills taped together, cut off and closed by silver-soldering. The rings were sanded down to half their thickness and one each of these rings cemented to the inside and outside of the hull. The hole was drilled out and filed to shape.
February 2020 - Freeing Ports - Originally I had planned to surface-etch the lids and the frames on the inside of the bulwark. The drawings for the masks were ready, but I never got around to actually etch or have the parts etched. Since I now have the laser-cutter, these parts were cut from printer-paper (80 g/m2 = 0.1 mm thick). With a width of the frames of only 0.5 mm, the surface-etched rivets may not have come out anyway. The same for the rivets on the hinges of the lids. At least not with my somewhat primitve home-etching arrangement. If I had etched the parts from 0.1 mm nickel-brass, the overall thickness would have been reduced to a more correct 0.05 mm (= 8 mm for the prototype) The lids have no latches to lock them and the ports no bars across them to prevent items or people being washed over board. This makes their construction simpler.

Papers, even the smoothest ones, alway have a certain surface-roughness, at least compared to the bakelite of the bulwark. Therefore, the chosen paper was soaked in wood filler and spread to dry on a thick glass-plate that was covered in cling-film. The latter allowed to remove the paper without it rolling up. The surface was then smoothed with very fine steel-wool. The lids were cut from the thus prepared paper, but it needed several trials to find the right cutting parameters in order to arrive at parts of the correct dimensions. This is a disadvantage of such simple laser-cutters and their software. As the material is practically free, this is only a nuisance, but no other loss. Also the etching may not work out right in the first go, which may mean a considerable loss of money and time, if the process had been outsourced-
Unfortunately, it does not work for very small parts with the paper prepared as above. It turned out to better for the very small parts, including the frames, to cut them from unprepared paper. Perhaps I should switch to dark paper. Due to its lower albedo (reflectivity) it absorbs more energy from the laser. Unfortunately, all the coloured papers I have come by so far are quite rough on the surface.

I cheated somewhat for the freeing-ports. As I was afraid that I would not been able to cut them out cleanly and evenly, I abstained from it. Also, the bakelite-paper used for the bulwark for reasons of stability would have had a scale-thickness of 64 mm, when looked on from the side. Therefore, frames and lids were glued flat onto the inside and outside of the bulwark respectively. I hope one will not notice this too much, once the stanchions are in as well.

Frames and lids were glued on with zapon-lacquer. Little laser-cut rectangles of 0.3 mm x 0.5 mm were stuck onto lids to simulate the hinges.

Foredeck and decks-house were accessible through various doors. These were cut from 0.1 mm bakelite paper with the laser-cutter. The hinges were laser-cut from thin paper. In both cases various tries were needed with different cutting parameters and slightly altered drawings in order to arrive at the correct size. Die parts were assembled using zapon-lacquer. Zapon-lacquer was also used to glue the door into place.
On historical photographs I noticed that each door had a narrow step. These were represented by shaped and laser-cut tiny strips of paper.
Once the door were in place the hole for the bullseyes were drilled out. The laser-cut hole served as a guide. Once the boat is painted, the glazing will be installed in form of short lengths of 1 mm Plexiglas rods. The front of the rods will be faced and polished carefully on the lathe.
At a later moment also the door-knobs will be turned from brass and installed.

Best available image of the bow scrollwork and name-plate (S.M.S. SCORPION)
Only available image of the stern scrollwork (S.M.S. NATTER)
Artwork for the bow scrollwork Some examples of  (unused) laser-cut scrollwork and the name-plates Scrollwork and name-plate in place Stern scrollwork in place

June 2020 - Scrollwork and name-plates - As I had tried laser-engraving on cardboard for the gun-layer stand, I wanted to try out this technique also for the scrollwork and the name-plates. Originally, I had foreseen to develop the scrollwork by printing the design onto a decal-sheet and then build it up by sculpting it over the printed lines with acrylic gel. The name-plates could have been surface-etched in brass. One could have etched, of course also the scrollwork in brass and then complete it with acrylic gel.
It is not very clear what the scrollwork looked like when new and from what material it was made. The fact that it seems to have persisted intact over the whole life of these ships may indicate that it was actually cast in some metal, rather than carved in wood.
There are no close-up photographs of sufficient resolution in the black-white-yellow paint-scheme. Closer photographs are only available from a later period, when everything was painted over in grey and some of scrollwork may have been picked out in a darker grey. Originally it was probably painted in yellow-ochre with parts of gilded. In any case, available photographs are not clear enough to truly reconstract the scrollwork, so some interpretation was necessary.
In addition to the scrollwork per se, there was a shallow sculpture of the animal after which the ship was named, for SMS WESPE, of course, a wasp. Existing photographs only give a vague idea what these sculptures really looked like. In any case not for SMS WESPE.
There has also been some scrollwork at the stern, but pictorial evidence for this is rather scarce. There is only one known photograph that gives a full view of the stern of this class of ships and this was taken at the very end of their service life. Available copies of this photograph are not clear enough to really discern what the scrollwork actually looked like, so a fair amount of imagination is needed to recreate it.
Creating the basic artwork for the decoration was a multiple-step process. First a photograph of the respective section of the model as built was taken in order to give the necessary proportions. In the next step the best available photograph with the least perspective distortions was chosen and fitted over the model photograph. In another layer of the graphics software (Graphic for iPad) the scrolls were drawn free-hand (with the iPen) using the paintbrush-function and a good amount of smoothing. This artwork was saved as a JPEG. On the Internet I found a nice drawing of a wasp and turned this into a pure b/w image with a good bit of editing in Photoshop. Both, the scrollwork and the wasp were saved as transparent GIF. In my favourite CAD-program (EazyDraw), the parts were mounted together. This could have been done also in Photoshop, but I did have a scaled drawing of the bow-section in EazyDraw to which I exactly fitted the artwork. There were also some addtional parts to be cut.
The scrollwork was cut/engraved with the laser-cutter using the ‘half-tone’ function, which means that the laser is modulated to emit less power when a grey pixel is encountered and full power, when a black pixel is encountered. I had to play in several iterations with the settings of the laser-cutter in order to arrive at a satisfactory result.
In a first try the name-boards were made in the same way, but the half-depth engraving around the letters resulted in a somewhat fuzzy apearance of the letters. I, therefore, tried out a different idea. From previous trials it was know that the laser had no effect on transparent materials and very limited effect on translucent materials. Hence, I covered some cardboard with a thin layer of Pleximon 192 (essentially liquid, light-hardening Plexiglas). A thorough curing this sandwich was sanded flat and presented to the laser-cutter. The laser removes all the cardboard, but leaves the acrylic virtually untouched, with the exception of some light surface roughness. One ends up with a piece of thin acrylic sheet to which the letters and the scrollwork of the name-board are attached. Within the limits of the resolution (0.05 mm) of the laser-cutter the lettering turned out reasonably clear, perhaps not as crisp, as when photoetched though.
The scrollwork elements were attached to the hull using fast-drying varnish. The actual painting and guilding will be done, once the hull has been painted.


The aft part of a WESPE-Class-Boat (Lavverenz, 1900)
Etched and soldered together stanchions (they are about 5.5 mm high)
The bulwark-stanchions in place
Recessed slide and anchor release gear
Recessed slide with Inglefied-anchor put temporarily in place  View of the bow with the anchor stowage Plexiglas plugs ready for insertion
Glazed portholes
Glazed portholes

December 2020 - bulwark stanchions
- The bulwark in the aft part of the hull is supported by a number of stanchions that were cut from sheet metal and rivetted together. The looks for these stanchions is reasonably well documented on a number of photographs.
The stanchions I had drawn already years ago and depicted the rivetting by surface-etching. The material is 0.1 mm thick nickel silver. They were made in double as mirror images and soft-soldered together in pairs with soldering paste so that the rivetting appears on both sides. The location of the stanchions was marked on the bulwark before this was put into place by thermo-transfer of a drawing, i.e. a laserprinter printout was ironed on. The stanchions were cemented in place with fast-dryining varnish.
Already a short while ago I had fashioned the boiler-ash chutes by milling to shape little blocks of acrylic glass. They were cemented to the bulwark inside and outside at this stage too.
January 2021 - Anchor stowage and release gear - The Inglefield-anchors are stored on sort of recessed slides and released by a traditional form of gear. This gear consists of a rotatable iron bar with a couple of thumbs welded on over which the securing chains are hooked. The chains go around the anchor and the other end is shackled to the wall of the recess. The bar is prevented from rotating by lever that is also welded to it. The lever in turn is locked by a rotating claw at the end of a second lever. I suspected this mechanism from the available drawings, but wasn’t shure about it – a German colleague had better eyes than me an could confirm this indeed on the not very clear photographs.
The slide is protected by three T-rails on each from the weight of the heavy anchors.
The release gear was fabricated from 0.3 mm diameter tinned copper wire and assembled using varnish. The rails in turn are fabricated from laser-cut strips of Canson-paper that was soaked in varnish. They also function as bearing for the bar of the release gear. I suspect the bearings were a bit more elaborate on the prototype, but I don’t have more detailed information. The locking claw is also a microscopic laser-cut piece. As usual, I had to experiment with different variants of the drawings and settings of the laser-cutter until I managed to produce reasonably clean parts.
December 2021 - Porthole Glazing - Following the discussion on ways to make the porthole glazing further up, I looked over all available photographs and came to the conclusion that one does not actually seem to see the bronze frame from the outside. On the other hand, most photographs or their scans do not have sufficient resolution to really see such detail.
In order to make my life simpler, I decided to go for solid Plexiglas plugs. I did have 1 mm Plexiglas rod in stock and short sections were cut from this to make 2 mm long plugs. The plugs have to be a bit longer than their diameter, so that they can be inserted straight. The front face was turned flat on the lathe and the back-end was given a bit of a chamfer for easy entry into the pre-drilled holes after which it was painted black using a black permanent marker pen. The pieces were then transferred to the micro-mill for polishing the front face with a silicon rubber polishing bit.
In order ensure that the porthole plugs are set at equal depth, a little ‘tool’ was made, a punch with a recess of 0.3 mm depth around the rim.

The 30.5 cm Rk/l22 gun

Lower Carriage

February 2007 - There are some fixtures for the gun that need to go into their place in the barbette early during the construction, including the races for the gun carriage and the semi-circular toothed rack that is part of the gun-training machinery. I decided to make these from steel, even though ferrous metals in model construction are frowned upon by museums. My justifications were that it is difficult to represent cast iron or steel by paint and that there hundreds of models in museums around the world that contain iron. I have used steel it in models some twenty years ago and presumably due to the lacquering shows no signs of rust.
Cutting thin disks from round stock of sizeable diameter is a pain I wanted to avoid. Against my better knowledge I picked a suitably sized steel washer as starting material. Unfortunately, the steel used does not cut very well at all and lot effort was spent to avoid chatter marks while turning and to obtain a reasonably good finish. The various types of wheel collets available for the watchmaking lathe come into good use for working on inside and outside diameters of the disks.
I set up the hand-shaper for cutting the rack teeth, but had to throw away the first two attempts because of the poor material and because - again against better knowledge - I did not lock the traverse slide when cutting. The table was removed from the shaper and the home-made dividing head bolted on instead. For lack of a proper tool grinder (another project) I hand-ground a cutter for the rack tooth (0.1 mm at the bottom) from a rod of high-speed steel. For holding this tool-bit in the shaper, the old lantern-style tool holder from the watch lathe came very handy. The unwanted parts of the ring were cut away on the shaper using ordinary left and right hand lathe tools. Finally the necessary sections were trimmed off with a fine saw blade on the lathe's sawing table.









Roughing out the metal disk with the backing of a wooden disk

Grooving the races with a specially ground bit
Cutting out the inside of the large, backward ring
Trimming the outside of the small, forward ring
Shaper set-up for cutting the toothed rack
Cutting the toothed rack with a specially ground tool
Cutting away the unwanted part of the ring with an ordinary tool
The set-up showing the finished rack
The races and the toothed rack ready to be trimmed to correct length of arc
Base-plate and rails for upper carriage laser-cut from Canson-paper The basic frame of the lower carriage from the rear

February
2020 - The lower carriage of the gun was a rather complex construction from rolled L-profiles and thick steel sheet. Unfortunately only the drawings in GALSTER (1885) and the coloured synoptic drawing from the Admiralty have come to us. Many construction details are superimposed onto each other with dashed lines, so that the interpretation of the drawings is rather difficult in places. As aids to interpretation with have one close-up photograph, the large demonstration model in the navy museum in Copenhagen, and the preserved guns of Suomenlinna Fortress off Helsinki. The carriage for the Danish iron-clad HELGOLAND, however, differs from that of SMS WESPE in some details, being actually a turret-carriage. The carriages in Suomenlinna are Russian copies of Krupp fortress carriages, but they allow to verify certain construction details that are not clear from the drawings.
Originally I had planned to construct the lower carriage, like the upper carriage, from surface-etched brass parts. To this end I produced some time ago already the needed detail drawings. Surface etching is a very good process to simulate rivetting. In the meantime, however, I had purchased the laser-cutter, so that laser-cut parts would be an alternative. I had hoped to cut the parts from bakelite paper. Various trials with different cutting parameters unfortunately were not very successfull for the intricate parts. The 5 W laser ist too weak to burn the material fast enough. Burrs of molten and partially carbonised resin form. Therefore, I fell back onto Canson-paper, which is a bit over scale with its thickness of 0.15 mm.
The drawings for the etching masks had to be reworked for laser cutting. It turned out during assembly that I had made several mistakes or misinterpretations. If I had send them off for etching this would have been costly, as both masks and etching would have to be redone. When cutting paper with a laser such corrections can be made quickly and easily – and the material costs practically nothing.
The laser-cut parts were soaked in nitrocellulose wood-filler and once dry rubbed with very fine steel wool. To double up parts and for assembly zapon lacquer was used. This dries so fast that no special arrangements for fixing the parts are needed.
I did not take pictures of the different steps of assembly, as this would have rather impeded the process. First all parts to be doubled up were cemented together using zapon lacquer and weighed down to keep them flat during drying. The longitudinal parts of the carriage had slots cut into them, so that the transveral parts could be positioned exactly. The frame assembly then was cemented to the base plate (which in reality was not a plate, but rather the frame was put together from L-profiles and steel sheets). The racers, again in one piece, where glued on top of this assembly. Underneath the base plate the housing for the training gears (which will be very much simplified as they will be barely visible upon completion of the model).
One can see on the laser-cut parts marks for the rivets. These will be added as tiny spots of white glue. More details will be added in the next steps, but have not all been drawn yet.


The basic frame of the lower carriage from the rear

The basic frame of the lower carriage from underneath with the housing for the training gears
The basis frame of the lower carriage with the upper carriage and the gun put temporarily in place
Working drawing for the parts of the hydraulic brake
The individual parts of the hydraulic recoil-brake
Dry-fitting of the recoil-brake into the lower carriage frame

Buffer beams on the lower carriage
One buffer dry-mounted

March 2020 - The 30.5 cm gun in pivot-carriage C/76 was one of the first guns in the Imperial German Navy that was fitted with a hydraulic recoil-brake, at a time, when compressors and brooks were still the standard.
The recoil-brake consists of a long cylinder with screwed-on cylinder-covers at both ends. The covers are pierced for piston rods and are sealed with packed glands. The piston rods are fixed at the front and rear end of the carriage respectivly. The piston is designed as self-opening one-way valve. The cylinder is filled with glycerine through a valve on top. The front-end cylinder covers acts also as cross-head and the upper carriage is linked up through two short forked connecting rods. The cross-head runs on a kind of slide to support the weight of the brake. The two piston-rods are only connected by the short piston, which also acts as valve, and that would not be able to support the weight.
When the gun is fired, the upper carriage slides back and the piston is pushed through the glycerine, converting the kinetic energy of the recoil into heat. The valve in the piston prevents the upper carriage from sliding back into firing position. In order to bring the gun forward, the rear end of the carriage is raised by turning the excentric bearings of the rear wheels and opening the valve in the piston. To facilitate this, the rear piston rod is hollow and a spring-loaded valve-rod extends beyond the piston-rod. The valve rod can be srcewed in and out by the aiming gunner using a long lever. In this way he can let the gun roll back into the firing position in a controlled way.
Unfortunately, not much of the hydraulic brake will be visible on the finished model, so that it was reproduced in a somewhat simplified way. It consists of five parts.
The piston rods were fashioned from clothes pins of 0.6 mm and 0.7 mm diameter respectively. Clothes pins are very suitable for piston rods, as they have a nicely polished surface. The eye of front piston rod was milled/filed from the head of the clothes pin.
The cylinder was turned in one piece together with the covers from a short length of 2.5 mm round steel. On the micro-mill a hole was cross-drilled for another short piece of steel that had the cross-head pins turned on. This piece was soft-soldered into the cylinder cover. The packed gland is compressed by a hexagonal nut, for which the hexagon was milled on in the dividing head in the same set-up.
The forked connecting links were laser-cut from paper and consist of three pieces each. The bronze housing for the valve spring was turned from 1 mm brass rod. The valve lever will be added at a later point.


Buffers and fastening nuts

Buffers and fastening nuts – the buffer have a diameter of 1 mm
Safety claw, pivot plate and drive shaft
Milling the loading crane
Fork for pulley
Milling the pinion and cog-wheel for the winding mechanisms
Part-assembled loading crane

Buffer beams - In order to limit the recoil and the running out of the gun, buffer beams are installed at both ends of the frame of the lower carriage. Each beam carries four buffers against which the front cross-beam of the upper carriage runs. The buffers are designed as pistons with piston rods screwed to the back of the beam. It is not completely clear what the elastic elements were. The drawings seem to indicate rubber discs with metal separating discs. On some of the guns at Suomenlinna fortress there are remains of rubber discs, while the demonstration model of the Danish navy seems to have spiral springs.
The bodies of the buffers were turned from 1 mm soft steel wire. The spring element was simulated by winding around it several turns of 0.15 mm tinned copper wire. Whether this is meant to meant to represent rubber discs or springs I will decide, when it comes to the painting stage.
The nuts that keep the buffers to the beam were also turned from 1 mm soft steel wire. First, the hexagon for a 0.6 mm spanner width was milled on in the dividing head of the micro-mill. On the lathe a 0.4 mm hole was drilled and 0.3 mm long nuts parted off. And no, I didn’t cut a 0.4 mm thread.
The parts of the buffer beams were laser-cut from 0.15 mm thick Canson paper and soaked in wood-sealer. They were folded and assembled using zapon varnish. In order to make folding more precise, a row of tiny holes were ‘punched’ along the folding lines with the laser-cutter, which weakens the material there. The rivetting was simulated by tiny drops of acrylic gel that was applied with a syringe and a fine injection needle. The needle was ground flat at the end for this purpose.
Safety claws - A heavy forged claw at each end of the frame hooks under the rail on which the carriage trucks run to prevent the carriage from lifting off the pivot. The profile of the hooks was taken off the original drawings and cut in multiple copies from Canson paper. These were glued together as a stack and sanded smooth – not a 100% satisfying solution, but filing such tiny but wide claws from the solid I found too fiddly. The lugs that attach the claws to the frame were also cut from Canson paper.
The gun is trained with the aid of a curved rack, a crown-wheel segment in fact. In to this rack made from bronze, a steel pinion engages that is driven by a shaft from a sort differential, which is powered by man-power from the deck below the barbette. After some consideration I decided not to make the pinion, though I would have liked the challenge, because it will not be visible once the gun has been installed on board. The driving shaft, which also is barely visible was fashioned in a simplified was from a clothes pin, the head of which was turned to shape.
May 2020 - Loading crane - Mechanically, the loading crane is a relatively simple affair, a rope winding drum driven through a pinion and cog-wheel, powered by a hand-crank, and for turning a worm-wheel drive equally powerd by a hand-crank. The console on which the crane rests is a quite complex part that was bolted together from several cast parts. My first thought was to mill the console from the solid or rather to solder it together from several milled parts. I finally decided to put the laser-cutter to work and fabricate it from several cardboard pieces. On the bottom line, this was the easiest solution and compatible with the rest of the under-carriage
The crane on the demonstration model in Copenhagen mainly consists of bright pieces of steel or cast-iron. Whether this was the case too originally on the prototype cannot be verified anymore, as no detail photographs exist. It is perhaps doubtful due to the continuous maintenance required to keep rust at bay. Although, the navy was not concerned about camouflage at that time, they were aware of the risk of early detection by the enemy due to bright metal part reflecting the sun. However, I allowed myself the artisanal-aesthetic license of bright metal, as I think it will be a nice contrast to the dark green of the gun carriage later.
The actual crane was milled from a 2.5 mm steel rod. To this end the thickness profiles in both dimensions were taken off the original drawings and ‚stretched’ out straight in the CAD software. After milling, the part was softened in the flame, so that it could be bent according to the drawing. The hole and slot for the pulley were machined afterwards, as the part could break there during bending. The final shaping was done with silicone-bound grinding bits.
Pulleys and forks form them are tiny parts machined on the lathe and the milling machine. The mechanism of the crane consists of a good dozen of lathe-turned parts, that were, apart from their minute size, were not particularly challenging.
The cog-wheel, the pinion, and the worm-wheel were turned together with their axes in one piece. On the photographs I counted 60 teeth on the large wheel, which gives, together with a diameter of 3 mm a module of 0.05. Making a single tooth mill seem to be too much work, so that I took the short-cut of just gashing the wheels with a 0.1 mm thick circular saw. It is only about the look and I did not intend to make these gears functional. Hobbing a worm-wheel of just 1 mm diameter was too big of a challenge, but at least I tilted the axis 20° when gashing it.
The final assembly can only be done, once the crane-console has been attached to the carriage and the whole thing is painted.

Drawing for laser-cutting - gun-layer stand

First Version with engraved surfaces of the platform for the gun-layer
Final Version of the platform for the gun-layer
Tea-bag fabric
The collection of gratings and steps
Caster wheels prepared for assembly Caster wheels in place

May 2020 - Gun operating platforms and gratings - The gun is mounted effectively on a turntable, so that platforms for crew are needed to give them access to the gun, while is being trained left or right. These platforms are made of wire gratings that are placed into angle-iron frames. The frames are suspended from the lower carriage by brackets. The pictorial evidence (photographs, drawings) is not detailed enough to fully understand what the brackets actually looked like and how and where exactly they were attached to the lower carriage frame. Some additional information is given by the Danish instruction model and the Russian clones in Suomenlinna fortress, but the carriages of these guns differ in detail from that on SMS WESPE. So the reconstruction of these platforms remains somewhat conjectural.
There are 13 gratings and steps in total, plus the platform for the gun-layer. The original plan was to photo-etch the frames from brass sheet, but with the arrival of the laser-cutter I changed this plan. The drawings were modified accordingly. The obvious solution to simulate the angle-iron frame was to design an open frame and then fold-up the vertical parts of the angle. However, it proved impossible to fold the narrow, 0.3 to 0.4 mm strips consistently and without distortions. Not sure this would have worked with the PE parts either. It was then decided to make the open frame and the vertical parts separately as narrow strips and glue them together with lacquer. After several iterations of drawings and laser-cutter settings to arrive a workable width of the strips etc. I arrived at an acceptable solution, albeit the ‘angle-irons’ are somewhat over-scale.
Assembly was a slow and nerve-wracking process. I did not manage to do more than one grating per evening and it involved a lot of (mental) foul language. Eventually, I got them all together. Zapon-varnish was used throughout the assembly. The finished parts are surprisingly strong
The original plan was to simulate the wire-mesh of the gratings by real wire-mesh and I obtained from wires.co.uk some really fine mesh in brass and steel. The idea was to pull every second wire in one direction, as the original mesh was rectangular. It proved, however, very difficult to cut such small pieces (sometimes only 1.5 mm wide) from the wire-mesh. Then a present to wife in form of a box with various (fruit) teas came to my rescue: some of the teas came in bags made from extremely fine but lightly woven fabric. I do not know what material it is, but as it dissolves in acetone, it is probably cellulose acetate silk or Rayon. Such fabrics are also used in silk-screen printing and I had not chanced upon the tea-bags, I would have looked there. This silk-screen or fabric can be precisely and easily cut with a new scalpel blade. The small pieces of fabric were dropped into the frames and fixed at the edges with a light touch of varnish.
The platform for the gun-layer is a more complex structure. A 5 mm sheet-metal armour shield is meant to protect him from shrapnel and small-arms fire. The armour shield is reinforced at the edges with rivetted-on metal strips. The original plan was to produce this as a surface-etched part. I realised that the laser-cutter interprets half-tone images as instructions to modulate the laser power so that it does not cut all the way through. Laser-engraving in other words. It did produce the desired effect, albeit with the engraved surface being rather rough due to the digitising effect. However, this part then was so thin and flimsy, that it would not stay in shape, when attempting to shape the round corner. I reluctantly accepted that it would be somewhat over-scale in thickness and cut the armour shield and the reinforcing strips separately. They were glued on top of each other with varnish and then the round of the shield formed over a rod. Folding and gluing completed the process.
I am not entirely happy with the result and tend to think, that etched parts may have looked finer. But then their assembly would have required a lot of very delicate soldering work – I don’t trust CA for metal/metal bonds too much. On the other hand, attaching the gratings to the lower carriage frame is likely to be easier for the cardboard parts than for brass parts. Before that can be done, I need to add the wheels, which requires a lot of handling ...
June 2020 - Caster-wheels - The (more or less) central pivot determines its rotational axis, but the weight of the gun is actually supported by four (kind of) caster wheels running on cast-iron rails bolted to the bottom of the barbette. The rails had been turned already a long time ago. The forks for the caster-wheels were fabricated from laser-cut cardboard. The wheels themselves are simple turned steel discs with a groove.
For the assembly, the rails were taped down onto an appropriately scaled print-out of the original plan of the vessel and carriage fixed with a clothes pin. The wheels and forks are temporarly united by axels made from short lengths of copper wire. The casters then were cemented under the carriage in the correct position with respect to both, the rails and the carriage frame, using again varnish.
The wheels will have to be removed again before painting the carriage, because they will be left in bright steel. I do not know, whether this is correct for the flanges of the wheels, but it gives the whole arrangement are rather ‘technical’ look. The axles with cylindrical end-caps have already been prepared from steel rod and will be installed during the final assembly.

Stiffening brackets added over the caster-rollers

Supporting brackets and rods for working the training gears Rollers in brackets to lead the running-in tackle The lower carriage with the gratings installed
Lower carriage temporarily placed into the barbette

June 2020 - More details on the lower carriage - While I was drawing some additional parts to be cut with the laser, I realised, that I had completely forgotten the stiffening brackets for caster wheels. They are essential elements in the construction, as the wheels each have to carry around 15 tons of the total weight of the gun. The brackets were fabricated from steel plates and forged(?) angles, fabricated on the model from tiny pieces of Canson-paper cut with the laser.
There were also two brackets needed for the operating lever including connecting rod of the gun training mechanism and for the clutch that connects the cranks below the barbette with the gun. The latter allows to connect gears for two different speed ratios, a high ratio for fine weather and a low ratio through as self-locking worm-gear for foul weather. A quite sophisticated arrangement actually, but as nothing of it will be visible on the model, it was ignored.
Connected to the gun training mechanisms is also a kind of capstan to help run-in the gun. A tackle is hooked into each side of the upper carriage and the runner lead by two guiding wheels into the lower carriage and onto the capstan. The wheels were turned from steel rod and their supporting brackets cut from Canson-paper. I meant to closely reproduce the original design, but in the end had to simplify it, because the parts were simply too small to laser-cut and handle. Because they are so flimsy that had to be put into place now and will have to painted over.
Finally the gratings were installed. Their brackets have flaps for glueing. The 'glue' used was again zapon-lacquer, which results in a surprisingly strong joint. The platform for the gun-layer was only put up for the photographs. It has not been attached yet, as it is too delicate and would impede the painting and the handling of the carriage.


The gun barrel and lock

March 2007 - Because there will various visible areas of bare metal, the material of the original, that is steel, was chosen.  A piece of round bar was faced, centred and rough drilled for the bore. This hole served as a protective counter bore for the tailstock centre during the following turning operations. In order to get a good roughening finish the automatic feed was set up. Unfortunately the minimum feed per revolution on the watchmaking lathes is still too high to get a 'mirror' finish. One day I have to construct some sort of reduction gear. The outer part of the barrel has slight taper (1 degree included angle) and the top-slide was off-set for this operation. For rounding off the ends of the rings the LS&Co. hand tool rest came to good use. The work was finished off with fine wet-and-dry paper (remember to cover ways!) and steel wool. The bore was bored to diameter using the slide-rest and micro-boring tool. I had originally envisaged to also show the rifling, but a quick calculation told me that for a 1 mm bore and 72 rifled fields I would need a tool edge just over 0.04 mm wide ...








Races and rack provisionally in their place inside the barbette

Facing and centring a piece of steel rod for the gun barrel
Rough drilling of the gun barrel
Turning the barrel using the automatic fine feed
Taper-turning with off-set slide rest
Rounding the 'rings' using a hand turning rest
Boring the barrel using a micro boring tool
Set-up showing for milling the seat for the lock

For drilling holes for the trunnions and milling the seat of the lock the diving head was set up on the slide-rest. I could have done this operation on the milling machine, but on the lathe the dividing head is centred automatically. The outer end of the barrel was supported by the arm with an appropriate centre fitted. The resulting shape from the milling operation looks like a keyhole, but something like a mushroom shape with sharp edges is required. This was achieved by hand filing. For the next operation the set-up had to be transferred to the mill anyway: milling the seats for the square trunnions. The trunnions merge in a concave curve with the barrel. The trunnions were turned up on the lathe as disk with two round stubs protruding from either end. In the dividing head on the mill the disk was milled square to the size of the seat (or rather the other way round). These parts then were soft-soldered to the barrel. Back on the mill the concave curves of the square part of the trunnion were milled using a miniature ball-head cutter, rotating the barrel in the dividing head.
Aiming a gun in these days was a rather primitive affair, using just simple sights. The sights (two of them on either side of the barrel) consisted essentially of a round bar with a sliding rod to give the elevation. The beads (mounted near the trunnions) were observed through a ring of inverted U-shape on top of the rod. The bar was screwed into a notch in the barrel. Now, drilling into a round at a tangent is nearly impossible without deflection and breaking the drill (0.3 mm!). Therefore, I ground flat a broken drill bit to make a make-shift micro-mill and sunk a start hole. This was finished with an ordinary drill.




Close-up of the milling operation in the dividing head with support

Working drawing and files used to finish the lock seat
Milling the square part of the trunnions
Milling the seat for the trunnions
Trying the trunnion
Milling the concave transition between trunnion and barrel
Milling the seat for the sights Drilling the seats for the sights
Round-
milling  the lock piece
Cutting off the finished lock piece

The next thing to be tackled was the lock piece. This 'wedge' has a rather complex shape with a flat front, but a round back and various recesses and cut-out. I decided it would be best to undertake most of the machining operations while it is still attached to some (round) material that can be easily hold in a collet. The round back was milled on the mill's rotary table after the various coaxial holes had been drilled and the flat sides milled, all in the same set-up. For machining the other recesses the piece had to transferred to the diving head on the mill. The large ring was also turned up and two holes drilled into it for seating the circular rack that forms part of the elevating gear.
The most time consuming part turned out to be the cover piece for the lock, which in the prototype was fastened by five hexagonal head bolts. It holds the moving and locking screws in their place. It took me four tries before I produced a half-way satisfactory piece. Soldering the microscopic bolts (0.4 mm head diameter) in place got me quite a few grey hairs. Finally a fake locking screw was turned up and the moving screw, which moves the lock in and out, was faked from a couple of drilled-together 0.1 mm copper wires, covered in a thin layer of solder to make them look like steel.
The various parts of the lock were assembled using lacquer and cyanoacrylate glue.



Milling square and hexagonal bolts

Facing the locking screw in special protective brass collet
The (almost) finished gun barrel with its lock
Part view of the drawings for the photo-etched upper carriage frames Surface etched frames for the upper carriage Filler and covering pieces laid out for soldering Assembled side pieces and ties laid out


The upper carriage

Throughout 2008 - Much time has been spent on re-drawing the carriage as templates for etched parts. After the etching process has been more or less 'mastered', surface etched parts of sufficient quality were produced.
February 2009 - The side pieces have been assembled. A filler was sawn from 0.8 mm brass sheet and the etched covers soldered on. Then 'rivetted angle-irons', from etched parts were soldered on. These will connected by tie-plates. The frame is also strengthend by horizontal ties. These are composites from several etched parts in order to show the rivetting. The horizontal ties were soldered to the side pieces, while the bulkhead-like ties were glued in because it would have been to difficult and risky to bring the heat for soldering at the right places. The covers for the trunnion-bearings were bent from an etched part and soldered together.
The upper carriage was further kitted-out with wheels, the gears etc.  The front and rear rollers were turned from steel to give them a real 'steel' appearance. On the prototype the rear rollers sit in excentric bearings that allows them to be brought into to contact with the rails on the lower carriage: when being fired the upper carriage slides back on these rails, the rollers allow it to roll back into the firing position.
Assembled carriage from the rear
Assmbled carriage from the front
Carriage with the barrel in place. Note the trunnion bearings cover (not yet trimmed to lenght)
Added the rollers plus the sockets aft for the lever that is used to turn the excentric bearings of the rear rollers

March 2009 - The gears were cut from brass stock in the milling machine with the help of direct dividing head and different division plates. The shape of the teeth is not exactly correct, because I used a disc-shaped burr as cutting tool. However, at this module (0.06), where the teeths are merely pitched 0.1 mm apart, this is hardly noticeable. The gear wheels are parted off from the stock on the lathe. The gear segment that will be attached to the barrel was produced in the same manner.





Cutting the gears for the gun elevating mechanism using different division plates
Cut-off wheels before further machining
The elevating gear train in GALSTER (1885)
The elevating gears on the instruction model in Copenhagen
Krupp factory photograph (TU Berlin) The step-wise forming of the dished handwheel


July 2020 - Completing the upper carriage - With the lower carriage basically ready for painting, I turned my attention back to the upper carriage. The structural elements made from photo-etched parts had already been constructed many years ago. Dito some of the details had been fabricated more than ten years ago, or at least partially. The elevating mechanism consist of a double reduction gears and is driven by a deeply dished handwheel with six spokes. These reduction gears are duplicated on each side of the carriage. The last wheel in the drive has a pinion on the inside of the carriage, which acts on a gear segment that is attached to the gun barrel. How the gear segment is guided is not clear from the available drawings and the model in Copenhagen. On the Russian Krupp-clones the arrangement is slightly different.

There is a friction-brake on the axle of the last large wheel of the gear train, which is worked with a cross handle. How this functions is not clear, but it presumably just pull the gear onto the frame via a short thread that is cut onto the end of the axle. On the starboard side of the gun there is a brass disc and an indicator lever that somehow shows the degree of elevation and presumably the range of the gun with different kinds of projectiles and charges. Again, how this indicator disc is coupled to the elevating gears is not clear, as I do not have any suitable photographs. In any case, the respective gear train will not be really visible on the model.

The dished handwheel started life as parts photoetched from 0.2 mm brass. In order be able to bend each spoke into the dished shape, a former was turned from some round steel and set up on the watchmakers ‘staking tool’. The spokes were pre-bend by hand and then finally pulled to shape using a hollow punch. The parts then were chemically tinned and soldered together with the aid of some flux.

The remaining parts, such as the axles, are simple parts turned from steel rod for strength, as they are quite long compared to the diameter.

August 2020 - The gear segment for the elevating mechanism of the barrel was produced by turning a short piece of copper pipe that I happened to have in stock to the correct inside and outside diameters. The teeth then were cut on the micro milling-machine using the dividing head in a horizontal position. Then slots were sawn at the angular distance required and then a slice of the required thickness parted off. The ends of the segments were finally filed to shape. The copper then was tinned in self-tinning solution to resemble steel. For the brackets with which the gear segment was attached to the reenforcement ring of the gun barrel a piece of brass rod was turned out to the correct inside diameter. On the mikro-mill with the dividing attachment in upright position the other faces were milled to shape. Finally, the individual bracket were sawn off with a circular saw at the correct thickness. The parts, which are just over 1 mm long, were chemically tinned to adapt them somewhat to the steel colour of the barrel. As they will not have to withstand any mechanical forces, they were glued to the reenforcement ring with zapon lacquer.
There were still a few details missing on the upper carriage, for instance the indicator disc for the elevating mechanism. How this indicator is coupled to the elevating mechanism I was not able to find out. It is not shown on the drawings, it is not visible on the model in Copenhagen, and the respective parts are missing from the guns in the Suomenlinna fortress. There was probably a gear train on the inside of the carriage. For this indicator disc a piece of 2 mm brass rod was faced off and a mock gradation engraved with a toolbit turned onto its side in 6° steps. There is a steel indictor lever (the function of which is not clear to me, either the disc turned or this lever, probably the former). For this a steel disc was turned with a short arbor and transferred to the micro-mill, where the shape of the lever was milled out. This indicator disc seems to have been fitted only to the starbord side of the carriage.
Furthermore the brake-handels for the elevating mechanism were missing. A short piece of 0.25 mm diametre copper wire was flattend in the middle with a 0.8 mm diametre punch in the watchmaker’s staking tool. The resulting round flat part was soldered to a short distancing bushing and turned cap glued on from the other side.

Progress in homeopathic doses: I realised that I forgot the the two steps at the end of the upper carriage. So, the parts for the frame were laser-cut, pieces of tea-bag mesh inserted and the assembly attached to the carriage with lacquer.


(Almost) all the parts of the elevating gear laid out
The elevanting gear provisionally assembled
Engraving the indicator disc for the elevating mechanism on the lathe
Steps for the gun-layer


September 2020 - Assembly of the gun
I realised now that I had assembled so many tiny parts for the gun, that it became difficult to not loose them and to remember what they were for. Some of the parts indeed had been made years ago. Therefore, I will proceed now to paint the parts and to assemble the gun, which then will be placed as a whole into the barbette, once the model is getting close to be finished.

The gun carriage will be painted green, as evidenced by some contemporary builders’ models and a somewhat later instruction manual. The hue of the green is another issue. It was probably based on chrome oxide green.
The barrel of these breech-loading guns was scraped clean, then wiped with vinegar until a brownish oxide layer developed. The process was repeated several times and any loose ‘rust’ wiped off. Finally, the barrel was rub down with lineseed oil, effectively producing in situ a paint with ferric oxihyroxide and ferric acetate as pigment. The resulting colour would be something like caput mortuum. This is the way the barrel of the demonstration model in Copenhagen seems to have been treated. Moving parts and mechanically relevant surfaces were keept clean carefully, of course. I will, therefore, lightly spray the barrel in Schmincke caput mortuum.
All parts temporarily assembled had to be taken apart for painting first. After selecting a green for the carriage, all the parts were given several light coats with the airbrush until a uniform colour and sheen was achieved. Not so easy on some of the complex parts. After letting it thoroughly dry, the paint was scraped off from those parts that are meant to be bare metal, but could not be masked off, due to being difficult to access.

The assembly then proceeded from the inside out on the lower carriage. First the parts for the hydraulic recoil brake were installed. I decided to deviate from the prototype and not to install the protective tunnel over the piston of the brake in order to show the metal-work. I think this small bit of artistic license is permissible. All parts were put together with small blobs of zapon-lacquer, which dries up quite invisible.

Next the spring buffers were installed. Putting in the tiny hexagonal nuts required a very deep breath each time.

Flipping the carriage over the caster-wheels were put back, but this really taxed my patience. The wheels are held in place by little flat-head pins inserted from both sides. A simple through-pin would have been easier to install, but wouldn’t be quite prototype fashion.

The lower-carriage was very difficult to handle due to the flimsy and delicate grilles and steps. One was broken off in the process, but luckily attached nicely again. 

The rail on which the upper carriage runs would be bare metal. Here the limitations of using cardboard as structural element shows its limitations. If I had used etched brass parts, I would have chemically tinned them before assembly and now could have just scraped off the paint or masked the area before painting to reveal the metal. Now I had to simulate it with paint and a soft lead pencil. I am not entirely satisfied with the result, but can’t do anything about it now anymore.

Overall, I am somewhat ambivalent as to the merit of using cardboard. The surface and cut edges simply are not as smooth as those of metal or plastics, such as bakelite paper or styrene. Unfortunately, styrene could not be cut with my small laser-cutter.

When proceeding to the upper carriage, I noticed a couple of mistakes I made years ago, when putting it together. Two of the transversal members were installed at a wrong place. The wheels of the carriage would have not touched the rails otherwise. When trying to rectify this, the whole assembly gave, but luckily I managed to put it back together without permanent damage.

Another issue also arose: one should not work from drawings alone, particularly in a project that streches so long as this one. It turned out that the carriage was a couple of tenths of milimeters to narrow and would not fit over the lower carriage with its guiding plates. I should have properly verified this, when developing the parts for the lower carriage. With a bit of bending and tweaking it could be made to fit, but cobble-jobs like this leave parts behind that are not as crisp as they should be.

Painting the gun barrel turned out to be a major nightmare. I did not want to prime the steel in order to not loose its metallic appearance. Usually, acrylic paints dry so fast that there are not serious issues with rust formation. When I first applied the first coat it looked ok, but the next morning it had developed a mottled appearance. The same phenomenon reappeared after each coat, but somewhat less. I attributed it to the fact that the bottle of paint was actually almost 25 years old and it had not been sufficiently mixed. In the end I cleaned off the paint and began again, but with the same result. Once more I took the paint off and then sprayed it, but without agitating the bottle, thinking that some of the pigment might have coagulated – same result. Finally, I decided to lightly prime the barrel with zapon-lacquer to isolate the steel. This forms a very thin and virtually invisible layer. This did the trick, but the priming was not done carefully enough and some spots were left bare – with the result that those areas appeared mottled again. I tried dipping, but this leaves a too thick layers in corners etc. Eventually, I managed to obtain a reaonably even layer – one has to work very fast and going over areas already treated is virtually impossible due to the rapid drying. It is also very difficult see, whether one has covered the whole surface. In conclusion, I think the pigment of caput mortuum, which probably is the mineral haematite (Fe3O4) has reacted with the steel (Fe0) leading to the mottled appearance. However, I managed to reproduce the appearance of the barrel of the demonstration model in Copenhagen reasonably well, considering the small scale.

A few of the flimsy and easy to break off details have not yet been installed and some levers to work the mechanisms still have to be fabricated.

The close-up photographs also show a lot of dust and fluff that need to be cleaned and that the paintwork has to be touched up here and there.
The painted and (part) assembled gun

October 2020 - Ammunition and ammunition handling
Thanks to the book published in 1886 by Carl Galster, we are relatively well informed about the ammunition of the German naval artillery of that time. The WESPE-Class was the only class of ships fitted with the Rk 30,5 cm/l22. According to Galster, three types of projectiles were available for these guns in the late 1870s/early 1880s: a) armour-piercing shells, b) shells with a time-fuse, and b) dummy shells for gun-drill.
All shells had two copper guiding rings that would be squeezed into the rifling. One ring sat shortly above the bottom and the second ring where the cylindrical part would transit into the ogival part of the shell.
The armour-piercing shells were cast in a particular way to harden the steel from which they were cast. They were hollow, but with only a relatively small chamber for powder in the rear part. The nose was cast solid. However, at that time functional impact fuses were not yet available, so the shells were filled with a mixture of sand and sawdust to give the approximate weight distribution as a powder charge would give. The threaded hole for the fuse in the bottom was simply plugged. Armour-piercing shells were painted blue.
The ordinary shell had thinner walls and consequently a larger power-charge. The nose was threaded for time-fuses. It is beyond the scope of this building-log to discuss the fuses in detail, it suffices to say that these were made from brass. Shells were painted red and when actually charged with powder marked with a black ring around the nose.
Dummy shells were ‘seconds’ of ordinary shells filled with a sand-sawdust mixture to give the same weight as a real shell. The hole in the nose was closed with a wooden plug. They were painted black all over.
Powder charges were supplied in cylindrical bags. Each bag weighed 46 kg. Up to two bags could be loaded, allowing to adapt the firing range. The bags were stored and handled in cyclindrical boxes lined with zinc sheet or where made from German silver.
A total of five shells were kept ready in the open barbette. I would assume that these would be only the armour-piercing and drill ones, as the fuse of ordinary shells would be rather exposed to the elements. I set out to make six shells in total, three armour-piercing and two drill-shells, that were stored in their respective racks in the barbette. The sixth is an ordinary shell to be placed in the shell-cradle under the crane.
My preferred steel in the workshop are copper-coated welding rods. The copper-coating is very convenient here, as their diameter of 2 mm is exactly the scale diameter over the copper guiding rings. The nose was turned free-hand with my special Lorch, Schmidt & Co. graver holder. The shells are 4.8 mm long. For the live shell, a little brass button was turned and inserted into a pre-drilled hole in the nose.
Shells in handling cradles Powder bag
Free-hand turning of the shell
Gun drill, showing the cradle
The finished ready-shells


It not clear, how the heavy shells (weighing around 330 kg) were handled inside the ship and hoisted to the level of the barbette floor. The crane on the gun-carriage does not actually reach over the access-hatch to the shell-store through which the shells presumably were hoisted. The drawings are not clear on the various hatches in the barbette and over the shell-storage, because of various elments being hidden behind others and therefore not drawn. I will have to live with this ignorance.

On the decks, the shells were wheeled around in trolleys. In the Rigsarkivet in Copenhagen a blue-print (in the true sense of the word) for such a trolley has survived. The trolly forms a cradle that can be hoisted by crane to the breech of the gun. At the rear of the gun two hooks are provided (not realised on the model) into which the cradle hooks. The shell then can be pushed into the gun with a rammer.
The parts for the trolley where laser-cut and assembled using zapon lacquer. Effectively the trolley was built around the shell for rigidity. A hole was drilled into the shell to secure the hoisting ring.
The racks for the ready shells were laminated together from laser-cut pieces and painted white. The retaining bar was made from flattened pieces of 0.3 mm diameter copper wire that was chemically tinned. In theory, each individual shell should have had its own retaining ring (keeping in mind how important it is to restrain these 300 kg beasts in anything but the slightest sea), but after several attempts to put these into place without damaging the paint-work on the shells too much, I gave up. Flattening the wire reminded me of another pending workshop project, namely a micro-rolling mill to produce metal strips of consistent width and thickness from soft wire.

Deck Furniture

Bollards

May 2007 - The ships was fitted with four pairs of bollards of square cross section; two at the rear and two on the raised quarterdeck. Luckily a good rather close-up photograph of the real specimen is available (see main page). The bollards are milled from round brass stock. Round stock was chosen as a starting point rather than e.g. flat stock, because it can be held easily in the lathe for turning a spigot on which, by which the part can be held for further machining. Otherwise it would be difficult to mount such small a part on the miller for machining five sides. The spigot is also a convenient reference for machining and for fastening on the model eventually. From the lathe the raw part is transferred to the dividing head mounted on the milling machine. After each pass with the tool, the part is turned by 90º or 180º depending on requirements. Thus a square and symmetric part is produced. For a final machining step the part is transferred back to the lathe and the dome shaped head formed using a very fine file on a roller-filing rest. The job is completed by rounding off the corners using a not-too-hard rubber-bonded abrasive wheel (CRATEX) in the mini-drill. Remaining machining burrs are removed by offering the part to wire brush wheel.



Turning the raw bollard

Mounting the raw bollard in the dividing head on the milling machine
Milling operations: first squaring, then producing the waist
Rounding off the cap
The roller filing rest
Finished bollards and part of working drawing
Drilling the holes for the bases

September 2008 - The base for the double bollards were intended to be a surface etched parts, but I was not happy with the results. So I decided to make them from solid brass. Solid brass was easier to handle for machining than brass sheet. Nevertheless the envisaged machining operations prompted me to make a couple of gadgets, fixtures, for the mill and the lathe.
Milling around the edges or on top of flat material always presents work-holding problems. Worse, if several identical parts have to be produced. Hence I divined a work-holding block with several clamps and stops running in a T-slot. Similarly holding small parts for cutting off on the circular saw is tricky and best done on the lathe with a special saw table clamped to the top-slide. This saw table allows parts to be safely clamped down for cutting.
The three parts of each bollards were soft-soldered together.







Drilling set-up
Milling the beading
Sawing off surplus material
Parting off the individual bases
Milling a bevel
Parts of double bollards
Work holding for soldering
Bollards, chain stoppers and spill

Chain-stoppers

May 2007 - One pair of chain stoppers is located immediately behind the hawse pipes as usual. A second pair is placed above the chain locker, which is located immediately in from of the armoured barbette. The bodies of the stoppers are rather complex castings, calling for some complex machining operations in model reproduction. The same basic technique as for the bollards was used. Given the complex shape, however, machining is not possible in one set-up. for certain operations the axis of the spigot has to be perpendicular to the milling machine, while for others, such as drilling it has to be parallel. For the latter and for milling the various slots, I choose to transfer the dividing head to the lathe. This has the advantage that its centre line is at the centre of the lathe spindle.
The slots were milled using a micro-tool made from a broken carbide drill, the end of which was ground flat. This results in a non-ideal clearance of 0º, while the cutting angle and side rake are that of the original drill bit. However, not much metal is removed so that this doesn't really matter here.



Milling the profile of the chain stopper

Milling the slots on the lathe
Milling bits and product
Squaring the part on the upright collet holder
Close-up
Round-milling on the rotary table

One set of stoppers was milled from brass, while for the other one I used PMMA (PLEXIGLAS®, PERSPEX), the main reason being that I ran out of brass stock. However, genuine PLEXIGLAS®, is pleasant material to machine and easy on the tools. It holds sharp edges and it easier to see what you are doing than on the shiny brass. Acrylic paints seem to key-in well - basically its the same molecule, of course. On the downside one may note that small and thin parts are rather brittle. Using diamond-cut carbide tools gives a nice smooth finish, but normal CV- or HSS-tools can also be used, of course.
While for the bollards and the front pair of stoppers the spigot could be on the geometric centre of the part, making it easy to measure while machining, for the after stoppers I had to place the spigot to the centre of the pipe down to the locker, so that the concentric rounded edges could be milled. The pictures show this operation.

October 2008 - The stoppers have now completed with etched brass releasing levers, etc. The fore stoppers were also soldered to surface etched base plates.

Undercutting using a micro saw bit Stoppers compared against a 5 Euro-Cent coin Drilling the hole for the release lever
Finished after stopper
Etched fret with stopper base plates (bottom left) and levers (bottom right)
Finished fore and after stoppers (right column)

Anchor capstan

August 2007 - One component that always has puzzled me somewhat as to their manufacture in a model has been the sprocket on capstans. While the geometry on horizontal windlasses is quite simple, with suitable depressions for the chain links around the circumference, the sprocket on a capstan is a complex affair. In any case the capstan head cannot be manufactured in one piece. So I broke it down into three pieces: the spill head, the sprocket and the base drum with the pawls. The whole capstan has more pieces including four guiding rollers and a finger to pull the chain off the sprocket. The cast base on the prototype will be reproduced as a surface-etched part.
The sprocket started out as a 2.5 mm brass rod taken into the dividing and into five notches were milled to produce something like a five-pointed star (these sprockets typically have five or six arms). The notches for the horizontal links were cut on the lathe with a forming tool. The sprocket then was faced and drilled to fit onto the capstan stem. The next step is cutting it off. This produces some burrs that need to be taken off. Luckily I have collected over the years almost every type of work-holding device that was ever made for the watchmakers lathe. Here the insert jewel chucks came handy to hold the 2.2 mm by 0.6 mm sprocket for facing-off.



Milling the sprocket, 1st step

Milling the sprocket, 2nd step Cutting with a forming tool
Drilling the sprocket
Facing-off the sprocket in a jewel chuck
Capstan head ready for cutting off

The capstan head is a simple turning job. The curved surfaces are pre-cut with appropriate lathe tools and then finished with very fine files. Incidentally, the implement shown on the appropriate picture is a rare miniature micrometer, also coming from the watchmakers toolbox and very handy for measuring narrow recesses and the likes. They came in sets of three, the other two are a depth-micrometer and one for measuring the width of notches respectively.
Finally, the three parts are soft-soldered together.

September 2008 - Again the guiding rollers are a simple turning job. The shapes were produced with a free-turning graver and by rotary milling in the dividing head. In the meantime various etched parts had been produced, including the base plate made up of two different superimposed parts and minuscule pawls. Also a chain separator from 0.3 mm copper wire rolled flat was produced. The various parts were soldered together.


Assembled capstan head
Shaping the head of the rollers by rotary milling
Set-up for shaping the rollers using the geared dividing head
Etched fret with capstan base plate (top left) and pawl (bottom centre) Finished Capstan (bottom left)
Engine-room telegraph drawings, original in the Norsk Maritimt Museum, Oslo, and the two telegraphs on the model

October 2019 - Engine-room telegraphs
On the ‘official’ lithograph of SMS WESPE from the early 1880s an unsual form of engine-room telegraph was drawn. It has a horizontal dial. In the earliest known photography of the ship during fitting-out, the telegraphs had not yet been installed.

A short while ago I discovered during a visit to Oslo in the Norsk Maritimt Museum a very similar telegraph on display. Unfortunately, the legend is not readable on my image. I seem to remember that the inventor or patentee was named. A search on the Internet and in my library did not produce anything, so I would be grateful, if anyone has an idea, who the inventor or patentee might have been.

The telegraph was redrawn from the lithography in order to serve as a working drawing with measures to guide the lathe operation.

The whole telegraph seems to have been made from brass and accordingly the model was turned from brass. The indicator arm and follower were made from flattened brass wire and the ‘wooden’ handle built up from PVA glue.

SMS WESPE had two telegraphs, one for the starbord and port engine each, of this early twin-screw naval vessel.

 
Binnacles from the 1880s lithograph
Working drawings for the binnacles
Milling the octogonal columns
Milling the glass hood in the shape of an octogonal pyramid
Cleaning up after painting
The parts of the binnacles
Binnacles temporarily assembled

November 2019 - Binnacles. SMS WESPE was originally equipped with three binnacles, one on the bridge, the mother-compass on a sort of pole in front of the engine-room skylight, and the third one in front of the emergency steering-wheel at the stern. In the 1890s a fourth binnacle was installed on a platform atop the engine-room skylight, but is left off here. As SMS WESPE was built in 1876 the original binnacles lack the conspicuous compensation spheres, that were only invented in the 1880s by Lord Kelvin. Also other type of compensation gear is not visible on the lithographs and the earliest photograph. A photography of the early 1890s shows a much more substantial binnacle in front of the emergency steering-wheel, which preumably now houses the compensation gear and also sports the compensation spheres. Originally, the compasses must have been illumanted by petroleum lamps, but from the lithographs it is not clear, where these lamps would have been attached. At least there are exhaust funnels on top of the binnacles, which have disappeared in later photographs. This seems to indicated that electrical illumination might have been introduced, when a dynamo was installed on board in the early 1890s for a search-light.

For the model the individual binnacles were redrawn from the lithograph in order to serve as a basis for working sketch to guide the lathe- and mill-work. One needs to keep in mind that the total height is somewhere between 10 and 15 mm.
The columns presumably were made from mahagony and were turned from brass rod before being transferred to dividing head on mill to cut the octogonal shape.
The actual compass was made, as usual, from brass and so on the model. Body and funnel did not provide a particular challenge, not considering the small size. To the contrary, the glass hood with its narrow frames of perhaps 15 mm width on the original. The body was roughly turned from Plexiglas and then transferred to the mill. Here the octogonal pyramid was milled. Using a 0.3 mm ball-head burr narrow grooves were cut into the edges and these grooves filled in with brass paint.
Once the paint had thoroughly dried, the faces were very lightly milled over, which resulted in sharp narrow brass strips at the edges. This is a technique that I copied from making engraved scales.
Originally I had the crazy idea of placing a miniature compass-card underneath the Plexiglas hoods, but even without it, assembling the binnacles was fiddly enough.

January 2020 - Steering-wheels. All the boats had two sets of steering wheels, one on the bridge and the emergency steering-wheels at the stern. Both stands had double wheels that worked in the traditional way on drums and ropes. There is a rather good photograph of the emergency steering position, which allows to deduct the details of the wheels. On the model these wheels are rather delicate affairs of only just under 10 mm diameter overall. I had been considering many different ideas for different kind of materials for fabricating them. Machining the slender spokes seemed a daunting task. Photo-etching and assembling them from different layers seemed a more realistic proposition. It then appeared to me that laser-cutting might be also an option, as I had recently acquired a cheap, small machine.

After some tests with the laser-cutter, I finally chose 120 g/m2 Canson-paper, which is 0.15 mm thick and has a smooth surface. It cuts well with the laser-cutter, as it is not ballasted with inorganic material, such as barytes. Some trials were needed to determine the right cutting parameter combination of contrast, laser-power and cutting depth. One should assume that for a simple B/W-picture the contrast should be 100%, but somehow changing the contrast setting changes the width of the cuts. For this reason the final dimensions of the parts depend on the contrast setting. Laser-cutting is contactless and the cut-out parts are not moved during the cutting process. Therefore, it is possible to cut them out completely and in contrast to the photoetch-process they do not need to be attached to some frame. When designing the image with which the laser-cutter works, one needs to consider all these factors that sometimes can only be determined by trial and error.

The wheels are built up from five layers in order to simulate the joinery work and to arrive at the necessary 3D-rendering. The core part was thickened by two more layers, the outline of which was drawn a bit smaller to simulate the profiling of wheels and handles. A further layer on each side simulate the rim and hub. The individual layers were glued together with zapon-lacquer, which impregnates and stiffens the paper. Unlike many other glues, this lacquer only forms a very thin layer, not adding to the thickness of the wheel, and the parts can be adjusted, as long as the lacquer has not dried. 

The prototype steering-wheels were re-enforced by brass-rings screwed onto each face. My intention was to make these rings from real brass shim (remember: only real metal looks like real metal ...). However, I did not manage to cut so narrow rings from 0.05 mm brass-shim. In the end, I bored out a piece of round brass stock to 6.8 mm and turned down the outside to 7.2 mm. From this tube with 0.3 mm wall thickness, slices of 0.1 mm thickness were parted off. After a few trials to get the settings right, this worked fast and repetable. The rings were deburred on 600 grit wet-and-dry paper, ground finely on an Arkansas-stone and polished on a piece of paper with some polishing compound. The brass rings were glued on with lacquer.

The axle including drum for the steering rope were turned from brass. The wheels will be spray-painted painted all over and then the paint rubbed off from the brass rings. This will nicely simulate the rings let into the wood as per prototype.

 
Laser-cutting machine
Laser-cut steering wheels Components of wheels
Steering-wheels and brass reenforcement rings
Assembled wheels and components
Gratings: JPG-mage as input for the laser-cutter Steering-wheel pillars: JPG-mage as input for the laser-cutter Machining the bearing caps in a ‘jewelling’ collet Shaping the covering cap of the wheel-axle using a cup burr Milling of the segment-shaped caps Individual parts of the steering-stands Steering-stand on the bridge loosely assembled

February 2020 - Steering-stands. They consist of two pillars each, supporting a pair of wheels. These pillars were in some way bolted to the deck, but drawings and photographs do not show how it was done. On the model this detail will be barely visible, as the lower part of the columns will be hidden by the gratings platform.The grating actually were photo-etched a long time ago. However, I did not like the rounded-out corners, which are due to my somewhat primitive etching process. Therefore, I cut the gratings also with the laser from Canson-paper. By playing around with the settings of the laser-cutter, I managed to produce reasonably square field and sharp corners. The fields resp. the ‘laths’ are only 0.3 mm wide and the grating is 0.3 mm thick (0.3 mm in 1:160 scale is equivalent to just under 50 mm for the prototype). I would have found it impossible to produce a grating in these dimensions prototype fashion.
The gratings are made up from two layers of paper 0.15 mm thick each. Imitating the prototype to some degree the lower layer only had transversal laths. Both layers were glued together with lacquer. The transversal reenforcing bars are built up from three layers of paper and glued to the gratings again with lacquer.
The platforms are raised above the deck by four short columns that were turned from brass rod. They were slotted for the reenforcing bars on the micro-mill.
The steering-wheel pillars were designed on the basis of the photographie showen earlier and what can be deducted from the lithographs. There is a pole protruding from the front pillar of the stand on the bridge, the function of which is unclear to me. It may have supported an indicator for the rudder or just the lanyard for the steam-pipe. The only known photograph that shows a boat before the armoured command tower was installed is too grainy from the printing grid (it is only known from a publication) to allow to discern such details.
The pillars where built up from three layers of Canson-paper, which allowed to represent the cannelures. The pillar appears to be rather thin, but this is how it is drawn on the lithograph.
The axle of the steering-wheel rests in bearings that are clad in brass or bronze. A piece of 2 mm brass rod was bored out for the round heads of the pillars and then a thin disc was parted off. For further machining the discs were held in special insert collets with a low recess turned into the front (so-calle jewelling collets, used by watchmakers to machine watch jewels or bushings).
The profile on the front was turned with a small boring tool and the dome-shaped cap over the axle was formed with a cup burr, as used by jewellery-makers to round off wires.  The caps are actually only segments of a disc and were milled of on the micro-mill accordingly.
All parts were glued together using lacquer

November 2020 - Anchors. The WESPE-Class was fitted out with two Inglefield bow anchors and (presumably) a standard anchor as stern or reserve anchor. The bow anchors are stowed on chutes and handled with two small cranes on each side.
There is no drawing for the stern anchor, but the drawings seem to show chocks for its storage. There is also a hawse-hole in the stern and a crane above it. So it is likely that there has been a stern-anchor. What is not clear at all is, how the chain would have been handled and there are no stoppers or similar to belay the chain when in use. Neither is there a chain locker drawn in the stern. So there is de facto conflicting evidence.
Inglefield-anchors a are complicated affair, but seem to have been rather popular at the time with the Imperial German Navy. In an instruction book for drawing in shipbuilding a nice detailed drawing of an Inglefield-anchor was found and used as the basis for the model reconstruction. Its size is taken from the WESPE-lithographs in the German Technical Museum in Munich.
One could have perhaps sawn out the parts from a 0.5 mm brass or styrene sheet, but considering an overall length of the anchors of 12.5 mm this seemed to be a rather daunting task. For this reason the individual parts were drawn for the laser-cutter and cut from 0.12 mm Canson paper. The shaft and other parts were built up from several layers that were cemented together with fast-drying lacquer, resulting in some kind of composite material.
The parts then could be easily shaped using diamond and other files. After a certain amount of filing more lacquer was applied in order to prevent the fraying of the paper.
Finally the built-up parts were assembled using lacquer.
Instead of the traditional way of shaping the shackles from wire, I decided to also cut them from paper. The bolts on the smaller shackels would have been too small to represent and were omitted. I think they turned out quite convincingly.
On the other hand, the bolts that keep the parts of the anchor together were turned from steel and blackened before assembly.

   
Drawing of an Inglefield-anchor
Drawing of the components Half-finishe
Anchor and parts
Drawing
for standard anchor
Laser-cut parts
Turning the anchor stock Assembled anchors Painted anchors Set-up for milling flats
Milling cleats
Turning body of cleat
Finished cleat
Drilling cranes
Drilling seen through stereo-microscope
Anchor-cranes temporarily installed

The standard anchor possibly could have been cut from brass and soldered together, but then, once it is painted, no one really will know the difference. So I also made the respective designs and employed the laser cutter again. The proportions were taken from an anchor drawing in the Danish Naval Yard archives of the same period.
The shaft and arms were build up from six layers this time and after lacquering them together the part was shaped using a diamond nail file and various needle and echappement files. As usual more lacquer was applied to keep the paper consolidated. Finally the flukes were lacquered on and the large shackle also cut from paper attached.
The stock was the biggest challenge, as it is only 0.3 mm in diameter in the middle and tapering off. It was turned from thin steel rod. As the anchor will be stowed in the stern, the ball at the end of the bent side will not be visible and therefore left off. The visible ball was formed by a tiny drop of white glue.
March 2021 - Anchor-cranes - As noted above, the bow anchors are handled with two pairs of cranes that are positioned on either side of the anchor pocket. These cranes will be painted white in compliance will the prescribed livery. Hence, it does not matter what material is underneath and I first attempted to laminate them up from laser-cut Canson-paper parts. There are actually two sets of different cranes, one with three sheaves and one with two sheaves. They were made up from four and three layers of Canson-paper respectively and cemented together with lacquer in the usual way. The sheaves at the end are held by brackets that were lacquered on. Sheaves were turned and lacquered in. However, in the end the result was not as crisp as I had wished for.
So I turned back to brass, starting with pieces of 1.2 mm diameter wire. A spigot to fit into the sockets already installed on the boat were turned on and the other end received a male centre. The piece then was transferred to the dividing-head on the mill, supported by the tailstock. The four long flat sides were milled on with a small-diametre burr. The flat section is 0.8 mm high and 0.6 mm wide. The sides of the future brackets were milled flat. After re-chucking, a starter slot for the sheaves was cut with a circular saw.
In the meantime, the sheaves of 0.9 mm diameter were turned from the same brass rod and the grooves, which are 0.3 mm apart were marked with a pointed turning-tool. The main craine has three sheaves, while the auxilliary one has two sheaves only. They were all turned in one piece and I did not bother to drill the sheaves for axles.
The brackets on the cranes were bent to accomodate the sheaves, which were soldered in place. The shape of the cranes then were finished with files and abrasive discs in the handheld drill.
The tackles are belayed on cleats or belaying pins – the photographic evidence is not clear and on the drawings these were omitted. I decided in favour of cleats as these were easier to make.
A piece of 2 mm brass rod was chucked up in the dividing-head set vertically and a flat of 0.3 mm width and 0.9 mm height was milled on. This piece then was transferred to the lathe, where the T-shape and the 0.3 mm diametre spigot were turned. After parting off, the clamp was finished in a pin-vice using small files and an abrasive disc in the handheld drill.
As the cleats are fitted to the sides of the davits, 0.3 mm holes had to be drilled for their spigots. I did not want to do this before bending the davits, as it would have weakend them and the hole might become distorted in the process. However, it turned out the davits could be clamped conveniently in the mini-vice in the dividing attachment on the mill.
The cleats were soldered into the holes. This completed the construction of the davits.

Skylights, Companionways etc.

September/October 2008 - The basic structure of the skylights etc. consists of strips of Pertinax that are cemented together with cyanoacrylate glue. More intricate parts are etched from brass. In the past I have constructed the skylights around a piece of Plexiglas milled to the right shape. It was not possible here, as the skylights will have to painted to represent wood, while the bars will brass colour. It would have not been possible to mask the Plexiglas for the spray painting.
Hence, the frame of the engine room skylight consists of a an etched brass part, folded up and soldered together. On the inside grooves had been etched in that serve to locate the bars to made from thin copper wire. The lower frame was constructed from Pertinax. The wooden gratings on both sides of the lower frame are again etched parts. Once this structure was complete, a square block of the size of the footprint of the skylight was milled from a piece of Plexiglas. In the next step the roof-shaped faces were milled on. To this end, a small insert vice was set to the appropriate angle of 40° in a larger vice bolted to the mill table. The fixed jaw of the insert vice pointed upward and the side of the block to be milled rested against it. This ensured that all four inclined faces would have the same angle and would start from the same height with respect to the reference (bottom) face of the block. A very smooth surface with little tool marks can be achieved on Plexiglas. The final polishing of the surfaces was done using CRATEX-type drum polishers followed by a felt drum loaded with polishing paste. All in the same vice setting to ensure a flat surface. I was lucky the Plexiglas 'house' fitted like a plug into the skylight frame.
The prototype construction of the boiler room skylight is not completely clear from the drawings, so that I had to 'fudge' it a bit. First the central piece that supports the chimney was shaped from a piece of Plexiglas. The PROXXON drilling machine was abused as a milling machine to this end: a diamond-cut milling bit was taken up into a collet and the height of the machine set so that the bit reached just below the table. Now the Plexiglas part was passed free-hand along the mill. The form to be cut out was printed on a piece of paper that was stuck to the Plexiglas. It was tested against the shape of the etched grilles in order ensure a snug fit. The box around the skylight was constructed again from Pertinax.
Dezember 2021 - After painting, the the skylight was completed with the bars cut from 0.1 mm brass wire that was cemented in using shellac. The parts then were assembled.

Etched parts for the skylights.
Shaping the central part for the boiler room skylight
The completed boiler-room
skylight

Unglazed framework for the engine room skylight
Squaring up a Plexiglas block for the skylight
Milling the sloping faces
Polishing the sloping faces Finished Plexiglas 'glazing' block
Glazed engine room skylight
Protective bars added
GEngine-room skylight ready for final assembly

March 2015 - The skylight above the officers' quarter in the back of the boat was constructed again around a little block of Plexiglas that was milled to shape and then polished. The panelling was constructed from various layers of 0.4 mm thick Pertinax. For sanding the edges square the then newly constructed micro-grinding machine and edge-sander came handy. On the prototype the upper part of the skylight could be lifted off and the coamings of the hatch had half-round trimmings around. For this something half-round of 0.4 mm diameter was required. Short length of half-round wire was produced from lengths of 0.4 mm diameter copper wire that were stuck onto a piece of aluminium that was milled flat in situ to ensure an even thickness of the half-rounds. I am not absolutely happy with the result, but one has to consider that the skylight has a footprint of only 7 mm by 8 mm.


Offficers' mess skylight Milling Plexiglas block for the officers' mess skylight
Milling half-round copper wires
Grinding 45° bevels to half-round wires Squaring up parts on the micro-grinder
The completed skylight
Milling and drilling operations on a hatch
Various hatches

January 2017 - Constructing the man-hole cover in the barbette gave the opportunity to test the just finished micro-milling machine. The item was milled from a small block of Plexiglas. The machine was also used as a co-ordinate drilling machine for getting the holes in the rack in one line and evenly spaced.

December 2017 - The officers’ mess skylight produced previously did not turn out quite to my satisfaction. It was not as crisp as I had wished. It was build up from layers of bakelite sheet around a milled core of acrylic glass. The mouldings present on the original were simulated by 0.4 mm copper wire milled to half-rounds. This all entailed messing around with cyano-acrylate cement, which is not my favourite and at which I am not very skilled.
It then occurred to me that much of all this could be milled from a solid piece of acrylic glass. One has to start from a block that envelopes the maximum width and depth, including the mouldings, and then has has to plan strategically which layers to mill off until the desired shape appears (reminds me of the joke, where an old lady asked a sculptor during an exhibition whether it was difficult to sculpt a lion – the artist replied: not really, madam, one takes a big block of marble and knock off everything that doesn’t look like a lion ...). The mouldings were left standing as square protrusions. They were rounded off using a draw-plate fasioned from a piece of razor-blade and held in a pin-vise. The half-round notch was cut using a thin cut-off wheel mounted on an arbor in the milling machine.
It is, of course, not possible to simulate panelling by this method. However, some parts can be left standing and the other completed with thin styrene-strips. For reasons of material stability, I am not such a big fan of polystyrene, it becomes brittle with age, but it has the advantage that it can be ‘welded’ onto acrylic glass or onto itself using dichloromethane. This results in invisible bonds and you cannot smear any glue around.
The next challenge were the protective grilles that were laid into the wooden frames above the actual skylight glass-panes. The bar of brass or bronze had a diameter of less than a centimetre, which translates to something like 0.05 mm on the model. However, the thinnest brass-coloured wire I could find had a diametre of 0.1 mm, so is slightly oversize. Recently I came across molybdenum wires that are readily available down to diametres of 0.02 mm ! It seems that they are used in the repair of mobile phones, to separate the front-glass from the LCD-display. I obtained a selection of sizes, but have not worked with the wires yet. The wires are supposed to be tough, so I do not know how easy it is to cut them to length.
I tried various methods to construct the window-frames with exactly spaced out bar. In the first instance I tried to mill-out the frame from a thin piece of acrylic glass. Evenly spaced notches for the ‘bars’ were milled with a pointed engraving bit. However, I did not manage to get the edges and corners as crisp and clean as desired. I then wanted to construct the frame near-prototype fashion. To this end I drilled holes for the 0.01 mm wires into the edges of 0.5 mm by 1.0 mm strips of styrene. It proved difficult, however, to align the four parts of the frame well enough. In the final version I welded 0.25 mm thick strips of styrene onto the milled acrylic glass body of the skylight. The block then was presented at the correct angle to an engraving cutter in the milling machine and the notches for the wires cut. In the next step the wires were glued into these notches, which was a major challenge – for the steadiness of my hand and my patience ... The frame was completed by another layer of 0.25 mm styrene strips. As the total thickness should have been only 0.4 mm, the excess was sanded off on the milling machine. Finally, the edges were trimmed to size and rounded with the draw-plate described above. The officers' mess skylight will receive an outside protective grille on the basis of an etched part.

Skylight being milled
Micro-draw-plate for mouldings
Trial of milling out window frame
Drilling
frame for
bars
Milling notches for window bars
Placing wires as bars
Building-up frames from styrene strips
Milling notches for window bars in situ Grinding-down frames
Completed Skylights for officers' mess and pantry

January 2018 - There are many ideas for constructing ladders or stairs for shipmodels. Together with gratings, this seems to be something that pre-occupies the the mind of shipmodellers. Perhaps because spacing saw-cuts evenly is a challenge with hand-tools. Having machines with tool-slides, controlled by spindles with graduated dials, at one’s disposal takes away most of that challenge, at least in theory. It seems logic to transpose the common techniques for making ladders just to a smaller scale, say with thinner saw-blades to cut slots into the spacing device.
However, the sizes of the materials to be used in itself poses a challenge. Treads in (wooden) stairs are typically 25 to 30 mm thick, which translates to roughly 0.2 mm in the 1:160 scale. The stringers of stairs may be somewhere between 40 and 60 mm thick, which translates into 0.3 to 0.4 mm on the model. The treads are usually notched into the stringers, so that the outside of the sides are smooth. This is a technique that would be very difficult to reproduce at this small scale because milling notches 0.2 mm wide and 0.2 mm deep into material that may be as thin as 0.3 mm is practically quite difficult to do consistently. The other difficulty is to cut the treads to exactly the right lengths. This problem also appears, if one tried to simply butt the steps against the sides for glueing. The clean glueing, without fillets appearing, also was a challenge, at least for me.
Initially, the material of choice was bakelite-paper, which is very stiff, but rather brittle at a thickness of 0.2 mm and has attracted all the issues mentioned above. I then tried polystyrene, which is much less brittle, but also much less stiff. It has the advantage that it can be glued, or rather welded, using dichloromethane, allowing nearly invisible joints between close-fitting parts. While all these properties are useful, the styrene proved to be too flexible to be sanded to size on the milling machine, compared to the bakelite-paper.
After various trials the most promosing method for stairs that emerged was the following:

1. cut strips somewhat wider than the stringers of the stairs from 0.2 mm bakelite paper.
2. arrange these strips in a pack on the micro-vise; count as many strips as needed for the stairs, plus a few spares, and a couple of sacrificial/protective ones at each side of the pack.
3. push the strips down into the vise and then sand them as a pack to equal width.
4. incline the vise to the angle of the stairs and cut slots at the required distances with a fine-toothed saw-blade of 0.2 mm thickness.
5. cut strips slightly wider than the width of the treads from 0.2 mm bakelite-paper, clean them up and round one edge slightly.
6. cut the treads slightly longer than the final length from those strips.
7. take two stair-stringers and insert the treads, which should be a tight fit, with the rounded side first.
8. adjust one side so that it is straight and the steps are only protruding slightly – everything should be square, of course.
9. infiltrate thin cyanoacrylate cement into the slots and let set thoroughly.
10. adjust the opposite side to the right distance and repeat as above.
11. nip-off excess tread material on the outside.
12. file the outside of the stringers flush with a diamond nail-file and/or the disc sander
13. glue a second layer of 0.2 mm bakelite paper to the outside of the stair-stringers
14. transfer to the vise on the milling machine, slots down, and sand down the stair-stringers to just above the steps.
15. turn the stairs over and sand them down to to the scale width of the stringers.
16. sand the stair-stringers to the required thickness.
17. clean-up all burrs etc.
18. the stairs are now ready to be trimmed to length.

I have tried to follow the same procedure with brass-sheet and soldering, but using bakelite-paper gave crisper results. Perhaps one should have etched the components and then soldered them together, as I had envisaged at the very beginning. This would have allowed to hold close tolerances of the individual parts, requiring less clean-up. However, I found setting up the etching process to onerous and also wanted to see, whether I could fabricate the stairs usind classical workshop techniques.
The hand-rails and other fittings will be produced later, together with the railings, as they will be very delicate.


Preparing a spacing device
Cutting notches for treads into stringers of bakelite-paper
Cutting slots for steps into stair-stringers of polystyrene
Glueing together the stair components
Sanding to thickness the stairs
Selection of stairs (not yet trimmed to length)
Laser-cut pieces for stairs
Collection of stairs and ladders
(the stairs are around 4 mm wide)
Assembly of ladders for the barbette Trimming flush the ladder rungs
Hatch with awning on a kuk warship
Hatch with awning on SMS WESPE

April 2021 - Somehow I was not 100% happy with the results above. The bakelite paper has a smooth surface and edge can be filed smooth too, but the glueing with CA was not quite so neat as I had wished. In principle it can be cleaned up well with a sharp chisel and fine steel-wool, but the inside edges of the steps are difficult to get to.
Having now the laser-cutter at my disposal, I decided to try my luck with it. The photo-etching templates I had drawn quite a while ago where modified for use on the laser-cutter. The idea was to build up the stringers from three layers of 0.15 mm thick Canson-paper. The innermost layer has slots for the steps. The steps themselves are build up from two layers of paper.
First the stringers were laminated together using lacquer and the edges sanded smooth, dito the steps. One stringer was then leaned against a little steel block with exactly square side on a glass plate. In this ‘jig’ the topmost and the bottom step were glued to the stringer with lacquer. Next the second stringer was glued on, while held exactly vertical with another little steel block. It was also checked that the step were at a right angle to the stringers. This assembly was let dry thoroughly. Still between the two steel blocks as ‘jib’ the remaining steps were slotted in and fixed with a drop of lacquer.
Using the laser-cutting process ensured that the upper ends of the ladder had a uniformly rounded shape and the bottom was cut off at the correct angle to the deck.
The stairs were held in place (I assume) by shoes made from bronze. I cut out these shoes with the laser-cutter and attached them to the bottom end of the stringers. Eventually, they will be painted in bronze colour and glued to the deck.
The colour of the Canson-paper soaked in lacquer comes close to that of teak, from which they were made presumably on the prototype. However, the actual colour depends on the number of layers of shellac I happend to apply and varied at places. So I will have to spray-paint them eventually to also get an uniform sheen on the surface.
The barbette is provided with two ladders, that allow the crew to scramble in and out of it, while for more leisurely access there is a narrow stair leading down from the bridge area. The stringers of the ladders, presumably steel on the prototype, were also cut from Canson-paper with holes for the rungs marked by the laser, which were opened up with a cutting reamer to exactly the right size for the wire to be used as rungs. After the trimming a second layer without perforations was laminated on. The ladders eventually will be painted white like the inside of the barbette will be.

September 2019
- After many trials and tribulations I completed the awnings over the hatch that leads down into the the deckshouse. Such hatches were protected by railings made from polished brass tubes with connectors cast in brass. The railings had sockets into which arched awning stanchions could be fitted. The hole arrangement could be dismantled in order to be able to cover the hatches in very bad weather. The old photograph shows a similar arrangement on an austro-hungarian warship of the same period. The contemporary drawings of SMS WESPE show such quite complex hatch-cover.
I first attempted to turn the stanchions from brass wire or small brass nails, but both materials turned out to be too soft given that they are 5 mm long with a diameter of only 0.3 mm. Even my sophisticated steadies didn’t work. In the end I had to fabricate them from 0.3 mm with 0,5 mm sections of 0.5 diameter brass tube slipped over them. The upper connectors were cross-drilled in the dividing head on my micro-mill for the 0.2 mm horizontals. I also attempted to turn 0.7 mm diameter knobs to fit onto the stanchions using a specially made cutting bit. While they turned out reasonably well, it proved impossible to fit them – I lost them faster than I could make new ones ... the knobs are simulated by tiny blobs of of white glue, painted in brass. Acceptable at normal viewing distance, but pretty awful in close-up photography.
Attempts to provide the stanchions with sockets for the awning-stanchions failed and I simplified the construction by just making a wire-loop at the end, that slips over the stanchions before the knobs were made. The knob in the centre was turned and cross-drilled.
The hatch-coaming was fabricated from two layers of bakelite so that it would rest on the deck. The corners were drilled 0.3 mm for the stanchions. The whole structure was assembled using lacquer. It would have been better to solder it, but I wanted to keep the polished brass appearance – nothing looks more like metal, well, then metal ! Nevertheless, I have some very good metallic paint made by a Czech company (http://www.agama-color.cz/en/products/colours) that was used on the knobs.

February 2018: Began to work on the various ventilators. These are not of the usual form, but have rectangular cowl. I first drew a layout for the cowl in order to photo-etch them, but then thought the assembly of these two or three millimeter high cowls would be too fiddly. As the ventilator-shaft would have to be turned anyway, I decided to machine the vents from the solid.
The first attempt was in Plexiglas, because it is easy to machine and the cover part from polystyrine foil could be easily cemented on without traces using dichloromethane. It turned out that at thin wall thickness required, Plexiglas would be too brittle and delicate.

Images showing different types of ventilators on board of a WESPE-class gun-boat Photo-etching mask
Setting up rectangular material in the 4-jaw-chuck
Turning the ventilator shaft
Drilling out the cowl
Aligning milling spindles
Setting up a brass rod in the excentric 2-jaw chuck
Turning the ventilator shaft
Turning the re-enforcement rings

For the second attempt I used brass. While in the case of Plexiglas I began with a rectangular piece held appropriately in the independent 4-jaw-chuck, I started now with a round brass bar held in the excentric 2-jaw-chuck. If I did not have such an exotic chuck, I could have started off with a larger diamter brass bar and milled away the excess. As a first step the ventilator-shaft was turned to size, leaving also the two re-enforcement rings. The piece was then turned around and taken into a collet of the appropriate diameter to drill out the shaft to such a depth that the bottom would not be visible. The nascent ventilator was then transfered to the micro-mill for further machining. The mill had been set-up with the dividing head carefully aligned with the milling spindle using a round piece of cemented carbide. It was also fitted with the geared dividing attachment. The first machining step was to mill out the cowl, starting from the pre-drilled hole. In the next step the side were milled flat. Finally, the vertical back of the cowl was milled round using the geared dividing attachment. The top curve was ground on free-hand using a diamond wheel on the micro-sanding machine. The top cover was fashioned from a piece of thin copper foil soldered on. The excess was milled off in the same set-up as previously.

Round milling the cowl back
Drilling out the cowls
Milling out the cowl
Shaping the back of the cowl on the grinder
Soldering on the topy of cowl
Finished ventilator and base

Boiler-room ventlators on boiler-room skylight
Milling officers' mess ventilator
Ventilator and Venturi suction- ventilator for the officers' mess

The boiler-room ventilators are sitting on a base that is square and then tapers into the round of the shaft. This part was milled and turned from Plexiglas, so that it can be cemented to the boiler-room skylight. This base will be painted white together with the boiler-room skylight, while the ventilator itself will be painted buff. This separation into two parts will give a clean separation between the colours.
The ventilators for the officers' mess, which included also a Venturi suction-ventilator, where produced in the same way, but are a lot smaller with the head only 2.9 mm high and the shaft having a diameter of 1.3 mm. All ventilators would be taken down, when the 'battle ready' alarm would be given. To this end they are mounted on sockets that would be closed with a lid or plug. This socket was turned from Plexiglas and will be glued onto the deck. It will be painted black together with the deck, while the white ventilator with black interiors will be put into place at the final assembly of the model.
June 2018: Two of the ventilators of the crew-quarters in the forecastle have the hollow chain-bollards as their base. These chain-bollards are used to relieve the chain-stoppers when anchoring or being moored using the anchor-chain. They have a couple of protruding 'noses' that keep the turns of the chain apart, so that the links do not wedge-in each other, making it impossible to cast-off the chain. Initially, two rims were turned on a piece of round brass and these rims then were reduced to the 'noses' by round-milling on the dividing head of the micro-mill. The base was also milled rectangular, as required. The ventilator was fabricated seperately, as the bollard will be painted black, while the ventilator will be white.


Shaping a Venturi suction-ventilator chain-bollard Shaping the chain-bollard that forms the base of the crew-mess ventilators
Collection of finished ventilators
Machining the funnel

July 2018 - Work on the funnel began. The main part was turned from a piece of Plexiglas™-rod. The bands were turned on and the top part hollowed cautiously 'flying', as a fixed would mar the soft acrylic glass. The remaining wall thickness is about 0.3 mm. The funnel is connected to boiler-house via a kind of apron that also accomodates its rake of 2.5°. The apron was turned from a piece of acrylic rod and then taken into a 'wheel-collet' on the vertical dividing attachment of the micro-mill. With the vertical axis inclined by 2.5° this allowed to drill out the apron at this angle. In the same set-up the holes for the two safety-valve exhaust pipes and the steam-whistle were drilled.
The funnel is actually only a sleeve and inside there is one smoke-pipe for each of the four boilers and a stiffening pipe in the middle. These pipes of 1.8 mm and 2.3 mm OD respectivel were turned from thin Plexiglas™-rod and then partly drilled out to the approximately scale wall thickness. Taking the funnel into the upright dividing attachment on the micro-mill, holes were drilled in the appropriate pattern. The upper ends of the pipes will receive stays from thin polystyrene sheet.

Funnel main body
Boring out sleeve
Seat for sleeve Funnel with smoke pipes inserted

February 2020 - Boat-davits: Originally, the WESPE-Class was provided with four boats, later a small dinghy was added to the complemenent. The very first photograph shows the boats suspended outboard from the davits in the traditional way. A few years later ‘barrings’ or boat-racks were installed above the walk-ways along the deckhouse and the davits elongated accordingly. I gather the boats were prone to damage and prevented the boats from being alongside each other in a ‘parcel’ (as was common practice for flottillas of the same class of boats). For the same reasons at some stage sponsons were installed to protect the screws, which projected beyond the profile of the boats, from damage. However, as I will show SMS WESPE in her original configuration, I choose the shorter, fixed davits.
The davits presumably were hollow, but were not simply curved pipes, but changed their diameter and cross-section along the length. They apparently had a cross-section of a flattened oval in the curved part in order to resist the bending force of the suspended boat. This makes the construction of the davits a bit more involved. At the upper end there is a ball that holds four rings for the stays and the hook of the boat-tackle.
They started out as 1 mm brass rod (steel would have been better, but is more difficult to drill and to solder ...). The machining steps required a bit of planning in order to keep unsupported areas to a minimum. First the ball was turned in my small 6 mm lathe, where I could use the so-called ‘right-angle tailstock’ as a steady, using my home-made ball-turning attachment. The turning bit was a broken 0.2 mm drill, the end of which was ground at a suitable angle.
The pieces of brass-rod then were transferred to the dividing head in the micro-mill for 0.2 mm cross-drilling into the ball – four holes were needed in each. Aligning the drill and the ball is a bit tricky, as the drill might slip, bend and break.
This task provided the incentive to finally commission the antique stereo microscope that I bought a while ago, but never got work properly. By close inspection I discovered that one of the two objectives was misaligned – some previous owner must have tinkered with the adjusting and setting screws. Playing around with the screws, I managed to get proper stereo vision which made the cross-drilling job rather easy and I managed to get the 24 holes without drill break.
The remaining eight holes are axial and were drilled on the lathe.
The next two steps in shaping the davits were also carried out on the lathe. The section behind the bulwark is cylindrical. In order to safely turn down the the relatively soft 1 mm brass to 0.7 mm a so-called ‘Jacot-tool’ was used as a steady. This is essentially a an excentrically mounted hardened drum with groves of known diameter along the perifery. These grooves can be aligned with the centre-line of the lathe. Normally this tailstock-tool is used as a steady to burnish axles and similar watch parts. After each pass, the drum was turned to a smaller groove in order to provide good support while turning down the shaft of the davit.
In the following step, turning the tapering upper end of the davit, deliberately a groove one size too small, forcing the rod off-centre. This resulted in a slight taper as desired. The procedure was repeated with inreasingly smaller grooves until the upper end reached a diameter of 0.6 mm.
I didn’t take pictures of the next steps. The davits now were taken into a collet in a square collet-holder. Under the stereo microscope the cross-drilled holes at the top were aligned with the sides of the collet-holder. This allowed bending the davit in the corret direction. Bending was effected with bending pliers against a scale-drawing of the davit. That these slighly marred the back of the davit did not matter, as the shape had to be filed anyway. With various very fine files the shape of the curved section of the davit was developed.

Micro-ball turning
Davits with ball-ends
Drilling balls Axial drilling
Jacot-tool used as steady for taper-turning
Set-up for drilling
Finished davits
Davits temporarily installed

The davits lock into the mounting plate on deck and are fixed to the rail of the bulwark with a bracket. This arrangement is entirely conjectural, as there is no suitable photographic evidence. The mounting plate is a simple piece of turned and drilled brass. The brackets started as thin discs with a slightly raised hub in the centre. From these discs three sides were milled off on the micro-mill to arrive at a rectangular plate with the raised hub at one end. Nothing spectacular either.
The boat tackle is belayed on a cleat that is fastened to the davit. The cleats were milled from a piece of 3 mm x 3 mm square brass rod (because I didn’t have 2 mm x 2 mm in stock ...). They are so tiny, that it would have been difficult to take pictures of the process. Again this was really only made possible now that I have the stereo-microscope in working order. First, the profile of the cleats was milled along the whole length of the brass, while it was clamped horizontally in my micro-vice. Next the piece was mounted upside down and a groove milled to fit onto the davit. The vice then was clamped vertically in the dividing head of the mill and the cleats sawn off.
The cleats and the bracket were soldered to the davit. For some reason I always struggle with soldering such parts whatever materials and tools I am using ... wanted to use soldering paste, but somehow mine didn’t work. In the end traditional solder did the job.
The eye-bolts were bent from tinned 0.15 mm copper wire. Tinned wire was used to make soldering it into the pre-drilled holes. First I formed the eyes around the shaft of a 0.25 mm drill, but then found that I can form them just with a pair of fine tweezers equally well. The wire ends were cut off flush with a pair of cutting tweezers, but a scalpel on a glass plate would have worked as well.
Soldering the eye-bolt didn’t quite work out first for the same reasons. I then tried to cement them in using shellac, but the joint wasn’t strong enough (I don’t have CA around and don’t like it anyway). It took a while until I developed the right strategy. Also, I didn’t dare to drill 0.2 mm right through the spheres, but with control under the binocular it can be safely done. It turned out that I had to re-drill various holes, because they became filled with solder. Holding the davits for re-drilling caused some head-scratching at first, but then I remembered that I had made clamps from fibre-reinforced bakelite (Novotex) for the third hand and took one into a 4 mm collet in the dividing head. This proved to be stiff holding arrangement and watching the drilling under the binocular, allowed the check for any dangerous deflection of the drill.
So on the bottom line, the following strategy would have been best (and was put into practice for some of the davits):
- drill the axial hole first on the lathe, bend the davit and the solder the eye into it;
- then cross-drill horizontally;
- insert an eye-bolt with a long leg and form the other eye with a pair of tweezers, so that both eyes are pulled tightly against the davit;
- solder the pair of eyes;
- cross-drill the vertical hole for the eye-bolt into which the boat-tackle will hook.
- insert an eye-bolt with a long leg and squeeze the leg flat, so that it cannot slip out.
- solder this last eye.
When the soldering is done fast and the other eye are not touched by accident in the process they will stay put.

April to June 2021 - Block-Making - The 1/160 scale from certain perspectives is rather inconvenient actually: too big to fake things and too small to do them properly due to practical limitations of tool sizes and materials dimensions. Blocks at this scale would probably come in the range between 0.8 mm and 2 mm length. The latter would be a hefty 32 cm (or 13”) in real size, at least for smaller ships.
When I started dabbling with photo-etching in around 2007, I had the idea to fashion blocks from surface etched parts folded up and soldered together. As the need for blocks only arose now, I had never tried out the idea. Since then I got the laser-cutter and thought I might give the same principle a try, laminating the blocks from laser-cut pieces of paper. I am aware that larger blocks, build up from laser-cut wood pieces, are commercially available now.
My preoccupation was to produce blocks of the correct outside shape and through which the rope passes prototype fashion, i.e. to avoid the brick-like thingies from which the ropes sticks out vertically and then goes down with a sharp kink, as seen all too often on models.
Warning, the following text describes some dead ends without success - As aligning the tiny parts correctly would be the main challenge, I drew the pieces at their correct relative location into small frets of several blocks that would be laminated onto each other. Once the lacquer was dry, the blocks could be separated. As I needed various double-blocks for the boat-davits and the anchor-cranes, I started out immediately with that challenge, thinking that, once mastered, single blocks would be comparatively easy to make. In fact, due to the thicknes of the Canson-paper, I needed seven layers, one for the outer shell on each side, one in the middle separating the sheaves, and the sheaves made up from two layers each. While the lamination as such worked well, aligning the seven frets precisely enough did not work too well. It also proved impossible to sand the tiny paper blocks to shape and smooth enough. The main problem, however, was that somehow the hole for passing through the rope always got clogged up. Opening it up with a drill then invariably let to the distruction of the block.
After a dozen of tries with different variants of the laser-cut parts to facilitate alignment etc. I finally gave up that idea.
Next came several experiments with the classical methods of carving blocks from billets, but using styrene or acrylic glass, rather than wood. While both materials are easy to drill, they proved too soft for shaping the grooves etc. cleanly, particularly the styrene. Attempts to cut slots for the sheaves, then to glue on a bottom piece to close the slots, and to later insert turned sheaves failed also. It was impossible to keep the 0.2 mm wide and 0.8 mm high slots clean enough from glue and cleaning them out afterwards at this dimension is hardly possible. Using brass and soldering equally failed to produce the desired result.
Now comes the success story - In the end I resorted to my trusted bakelite. This material is hard and does not smear, but is much more brittle than the other materials. Drilling 0.2 mm holes is still quite easy and doesn’t strain the drills too much.

Drilling 0.2 mm holes
Milling 0.2 mm slots Milling the grooves for the strops
Microscope
to aid
work

Row of double-blocks ready to be separated Miniature cross-cutting slide for parting off blocks
A collection of blocks and the special pin-vice to hold them

A collection of blocks and 1 Euro-Cent coin for comparison Two sizes of blocks of 2 mm and 1.6 mm length respectively Blocks with strops

I cut strips of the required width from a 1 mm sheet of bakelite to start with. The micro-mill then was used as a jig-borer and a row of holes drilled for a batch of blocks. Using a broken 0.2 mm drill, ground flat at the end, was then used as an end-mill to cut the grooves that simulate the slots for the sheaves. The profile of the blocks was roughly milled to shape using various cone-shaped burrs.
For parting off the blocks, a miniature cross-cutting slide was made for the sawing table on the lathe. This prevented the small blocks from being catapulted across the work-shop.
The sides of the block-shells were smoothed and shaped with the blocks clamped in a kind of special hand-held vice. This vice has brass insert jaws that are curved and stepped so as to clamp the block securely while working on it with an abrasive wheel.
Strops were made from 0.15 mm copper wire. The block was held in the vice and a loop was laid around it and the ends twisted tighly together. The twisted tail was shaped into a hook and the surplus wire nipped off. Then the hook was dapped in flux and with a very small soldering iron a tiny amount of solder was applied to strengthen and stiffen it. Some of the blocks also have an eye at the end of the strop formed by twisting it twice before laying the wire around the block.


Ships' Boats

May/June 2022 - Gig - While I was waiting for the wire for the chain-rails to arrive, I turned my attention to the ship’s boats. At that time there were four, two class IV cutters, a gig, and a joll-boat. In 1:160 they are all less than 50 mm long and 10 mm wide. Thanks to some research of various colleagues in Germany, we have reasonably good information on these boats, including lines and their constructional arrangement. In addition, there has been a text-book on boat construction, published since 1878 with updates every few years until 1929, which gives quite a few details on the naval boats.
I don’t quite feel like building four boats with all their internal constructional and fitting-out details, so I decided to show three of them covered, ready for the sea, while the small joll-boat will be shown ready for launching in an emergency, as it was custom. I don’t actually know, whether this boat or one of the cutters was used for the purpose, but assumed that the smaller boat would be easier to get into the water in a hurry, say in case of man-over-board.
An additional challenge is that these boats were clinker-built. I once built a clinker-dinghy in 1:60, which was only 50 mm long, but it was much wider and deeper and with wider strakes. These boats typically have ten strakes on each side.
I picked the long, but narrow and shallow gig first. I had a body plan available, drawn by a colleague some years ago. In addition, the text-book (BRIX, 1883) provides constructional details. The text indicates the dimension of the various parts.
I decided on an overhead plank-on-bulkhead (POB) construction, which in a way seemed easier than trying to carve the hull with its hollow lines aft from a solid piece of wood using templates. The individual framing stations were taken from the body plan and drawn with additional material on the top in order to arrive at a common reference plane for overhead construction. The bulkhead were laid out for laser-cutting from Canson-paper. A second drawing for laser-cutting contains another set of bulkhead and doubling pieces for the keel and stem, so that a rabbet for planking can be created. All pieces are doubled up after soaking in varnish to stiffen them. The pieces then were assembled as is tradition for POB-construction and mounted onto a piece of Canson-paper for extra stiffness. The whole assembly will then mounted in turn on a piece of wood to ease handling.
So far so good, but planking will be challenge, as the individual planks will be less than a millimetre wide overall. In theory, they should be only 0.06 mm thick in 1:160 scale, but I will give it a try with the 0.15 mm thick Canson-paper and see what it will look like. If the planking looks to coarse, I will have to start all-over again …
Tapering such planks by hand would be too much of a challenge an not quite feasible in paper I think. However, my 2D-CAD program gives the length of the Bezier-curves used to draw the outline of the frames. So, I simply took this length, divided it by 10, divided the result by 4 and then multiplied it by 5, which gives the plank width at each station line assuming that they overlap by about a quarter of their width (according to the drawing in BRIX, 1883). The contours of the planks were drawn for laser-cutting with this information. A first run, was not so successful – I will have to optimise the cutting parameters.


Drawing of gig from Brix (1883)
Laser-cut bulkheads and keel-pieces
Bulkheads and doubling pieces for keel and stem
The assembled parts for the POB-construction
Planking in progress
Planking from the middle to the ends

Planking completed

Cut free from the building base
Gig with simulated cover
First paint coat

The ‘planks’ were laser-cut from Canson-paper as indicated earlier. Unfortunately, I do not have a software (yet) to develop a planking layout, so the planks were tapered, but straight and all of the same size. However, when wetted with varnish, the paper, unlike wood, can be relatively easily bent and shaped across the wide side of the plank.
When laser-cutting the planks, I ran into a small glitch, that is the outside of the planks have such a shallow curve, that the ‘stepping’ due to the 0.1 mm resolution of the cutter becomes quite pronounced. I hope I can remove this later by sanding.
When fitting the planks, I found the best way was to fix them in the middle first and then work towards the ends. This is not ideal at the bows, where the plank has to run against the rabbet. Paper as such cannot be sanded for a close fit. I cut them as best as I could with my micro-scissors. When soaked in varnish, the paper can be moulded and squeezed, so that I did not need to thin the overlapping part of the lower plank, which would have been quite impossible in paper.
The planking progressed reasonably well, but I actually needed two more strakes per side to be able to go up to the sheer-line. Not good for strake counters … I attribute this to the wider overlap needed than expected. This was particularly the case, where there is a significant angle between planks, e.g. at the turn of the bilge. For the other boats, I will have to cut the planks a bit wider. A few conclusions from this exercise for the other boats:
-    Cut the planks tapered only on one side, as they can be edge-bend, when soaked in varnish
-    Cut the planks for 30 to 40% overlap, not 20% as done in this example; this gives more flexibility to adjust the planks
-    Do not try to imitate full-scale practice by running the planks into a rabbet on the stem, rather attach the outer stem and keel-piece after the planking is complete and has been trimmed down to the rabbet line.
The planking then was cleaned up and the excess at the transom trimmed back. I tried to sand the jaggy longitudinal edges a bit, but that did not work very well with the paper. However, in the varnished state it is not very visible. The hull was lightly rubbed down with fine steel wool to smooth the surface. Then some spots where touched up with some putty.
According to the prototype cross-section, there was a rubbing strake added to the top-strake. It was ‘faked’ by attaching a 0.2. copper-wire below the last strake.
Now the boat was ready to be cut from the base. The bulkheads were cut down and the keel-piece trimmed to a line that would be followed by the tarpaulin cover.
There is a hoisting chain fore and aft to which the falls of the boat-davits will be hooked, As only the top ring will be protruding from the boat-cover, this chain was simulated by a drilled together piece of tinned 0.2 mm coper-wire. It was hooked into a bulkhead and glued down with varnish.
Typically, modellers show the boats open, but most historical photographs show them covered. The design of the cover seems to vary a bit and I could not find information about this. Some photographs show the cover going down over half of the sides of the boat, with ropes apparently zig-zagging down to the keel and back up on the other side. Others seem to show a line going through a hollow seam to pull it tight around the boat. I opted for the latter to show more of the planking and the (later) paintwork.
I was debating with myself, whether I should first paint the hull and then add the cover, or the other way around. I opted for the second, as messing around with varnish, could damage the paintwork, even though it made it more difficult to hold the boat during (spray-)painting.
Basis for the cover was a piece of ironed-flat toilet-paper that was draped over the hull and then soaked in varnish resp. sanding filler. It was smoothed down over the edges and down to the rubbing strake. Once dry the paper was cut back to the rubbing-strake with a new scalpel-blade.
Painting the Gig - The boat was given a few thin coats of white acrylics (Vallejo) all over with the airbrush - the results of which was quite sobering: all the imperfections that were not quite visible in the ‘raw’ state now began to stick out. The jagged edges from the laser cutting that seemed to disappear under the varnish are no rather visible.
Also, using toilet-paper as the basis for the boat-cover was not a good choice. I used it in military-modelling in my youth to simulate tarpaulins, but perhaps then my standards were lower. I choose it, because I wanted something that looks limp and more casually draped, as can be seen on many photographs of the time. However, it turned out to be fuzzy on the surface and the edges in spite of being soaked in sanding filler. On the next boats I will try some Japanese silk-paper that I bought some time ago. I hope when it is wetted it will drape well.
I then brush-painted the boat-cover in thick white acrylic with a tiny drop of Vallejo 71.288 (Portland Stone) mixed into it. This gives a very light off-white colour. I don’t actually know, whether these boat covers were oiled or painted canvass.
According to the painting regulations for boats, the top two strakes where to be painted black. Due to the cover not much of them is visible, but I managed to tatter-on a bit of black here in there.
I will now turn my attention to the other boats, considering the experience with this one. If they turn out better, I might try a gig 2.0.

June/July 2022 - Cutters - As noted above, I will be following a somewhat different construction for the cutters. I will not create a rabbet by gluing doublings onto the keel-piece, but will attach the outer stem and keel, once the planking is complete. Hopefully, this will allow a cleaner run of the planks into the stem. Also, all the planks will be cut with a straight line on one edge.
I also decided to fill in the space between the bulkheads to avoid the (minor) cave-in that occurred in some places of the gig. The material should be softer than the bulkheads and I choose a hard foam going by the name Rohacell, which is essentially foamed-up Plexiglas and of which I have still many off-cuts from a project some 35 years ago.
However, nearly half-way now through the planking I have my doubts, whether there were any advantages in doing that. It turned out to be difficult to sand down the foam (which in itself sands very well with diamond abrasives or just sanding paper) to the bulkheads without damaging them and therefore alter the shape. If the infill actually is low, it become actually counterproductive, as the planks will follow this shape, rather than +/- the tangent between the bulkheads.
The bow-section is not so easy to get right, as it is quite full and there is a tendency for the planking to rise too high, when it comes off the bottom with little dead-rise. Again, I did not mark out the division of the strakes, but eye-balled it. I am not sure that I got the spacing at the bows quite right, as the planking is sweeping more up at the bows, than expected. As noted above, the forward section was more difficult than the rear section. Once the planking was complete, the stem- and stern-post (or rather the deadwood) areas were cleaned up and sanded to match the stem- and keel-pieces. The planks were also sanded flush to the transom.
The stem-keel-piece was laminated from three layers of laser-cut Canson-paper and lacquered into place on the boat. The outside contur was then cleaned up using a diamond nail-file. These files are very useful for the purpose. However, after a few strokes the freshly exposed paper has to be consolidated again with varnish to prevent it from fraying.
Like the gig, the cutter had a rubbing strake running along the lower edge of the top strake. This was simulated again using a 0.2 mm copper-wire lacquered into place.
Due to the charring from the laser-cutting process, it is difficult to see, whether there are any gaps between the stem-keel-piece and the boat as such. I probably will apply a thin coat of paint to be better able to see any imperfections, that then will be filled with putty. Overall, I a reasonably pleased how the cutter turned out so far and the strategy to attach stem-post and keel after planking is complete has paid off.
The hull was now cut off the ‘building-board’ and the infilling and the bulkheads shaped in a way I think the tarpaulin-covered sailing-gear, oars etc. which would be stowed in the boat would have looked like.
The use of toilet-paper to simulate the tarpaulin had only be moderately successful, but I remembered just in time, that a few months ago I had purchased some very light-weight (9 g/m2) Japanese silk-paper as a basis for sails. An appropriate piece was cut, draped over the boat and thoroughly wetted with zapon-varnish. It was glued in place so that it just covered the top-strake down to the rubbing strake. Once dry, it was trimmed back with a new scalpel blade to just the rubbing strake.
Installing the rudder while the gig was on the davits turned out to be misconception on my side, the boats were stowed with the rudder unshipped. So this time I only simulated the lower pintle with some flattened wire and a wire upright. Finally, the cutter was ready for painting and was given a good coat of Vallejo model-air ‘white’ all over. The tarpaulin the was given a wash of Vallejo white with a dash of Vallejo model-air ‘hemp’. Finally the two hoisting-rings made from twisted, tinned 0.2 mm copper wire were installed.

Laser-template for cutters
Three strakes on
Planking halfway up
Clamping tight at the bow
Planking complete and cleaned up Dito. Planking complete and cleaned up The hull with the shaped ‘interior’ The cutter with tarpaulin in place, before painting
The painted cutter The painted cutter


September 2022 - Jolly-boat - This is the smallest boat of the complement, at 6 m (= 19’8”). I am in for challenge, as I plan to build this open and fully equipped, ready to be lowered in case of man-over-board or a similar emergency.
I did not find an earlier drawing, but the drawing in the 1911 issue of the ‘BRIX’ is quite detailed, although it is for the karweel-planked version, while I will kit out WESPE all with clinker-built boats. It appears that the frames are drawn to the inside of the planking, which is exactly what I need. The arrangements for the keel and stem-/stern-post will be somewhat different from what I did for the other boats, as the bulkheads will only act as formers.
The laser-cut framework will be infilled with hard foam (Rohacell™) as before and then covered in cling-film to prevent the frames etc. from sticking to it. Below is the laser-cutting template for the main structural components. The thin strips on the right will become the ‘bent-in’ frames. Other parts will be drawn to fit as I am going along.
I will also need to still draw a base-board for the construction process, that has notches for the upper ends of the frames to rest in.
The main pieces for the core over which this boat will be constructed as plank-on frame build were laser-cut from Canson-paper and assembled in the manner described previously. The spaces between the bulkheads were filled with hard acrylic foam (Rohacell™) and the foam sanded back to the bulkheads using diamond needle files. Some gaps were filled with putty and then the whole thing soaked in wood sanding-filler to provide a hard surface.
The keel-stem combination and the transom were also cut out by laser in two copies to be stuck together to arrive at the correct thickness.
A base’board’ for building was cut from the same paper in double and the two copies stuck together for more rigidity. This baseboard had holes laser-cut in for the bent frames in order to give the exact spacing as per plan. The core then was covered in a layer of cling-film to prevent the lacquer to be used during the construction from sticking to the core (hopefully). Using again very thin double-sided mounting tape, the core was stuck to the baseboard.
The bent frames were cut using the laser to the required width of 0.2 mm which translates at 1:160 scale to a width of 32 mm. They should be only 0.1 mm thick (15 mm in the original), but the paper is a tad thicker. These frames were inserted into the pre-cut holes and aligned carefully. Then the keel-stem-transom assembly was lacquered into place. It should be noted that there are a couple of cant-frames that but against the keel/stem, rather than running under it.
It should be noted that this is the reverse construction order compared to the original. The clinker-built boat would be built over a couple of templates, with the planks going in first and the frames bent in afterwards. I chose this method, because having the frames in place is likely to make a stronger shell, when trying to remove it from the core.
On any clinker-built boat the garboard-plank is the most difficult to install due to its torsion and bending. Here it was no exception. It needed a fair amount of coercion, but it looks promising.

Drawing of Class 1 jolly-boat from Brix (1911)
Laser-cutting templates for jolly-boat
Core for clinker construction
The back-bone of the jolly-boat The framed structure of the jolly-boat
Garboard-planks installed
Starboard side - overall length is
36 mm

Looking down onto the planking
Trimming the frames with micro-scissors
The hull slowly comes off the former
Separated hull

October 2022 - The planking then was finished as for the other boats. I am not 100% satisfied with my work. The plank widths could/should have been more equal, but I somehow struggled with the shape of this boat more than with the others. Also, it was easier to glue the planks to the solid core than just to the framework and the edge of the plank underneath.
After the planks were on, a doubling  for the keel and stem was attached to both side, kind of faking a landing of the planks in a rabbet.
There are several little gaps and other imperfections that need to be touched up with a bit of putty, but I will do this only after having separated (hopefully) the boat from the former. The putty is quite brittle and my fall out during the procedure.
Once the boat has been released and the frames trimmed back, the wash-strake can be sanded to its final width and shape. Some additional (cant)frames will have to go in before the further fitting out can begin.
The moment of truth: I removed the copper wire and cut the extended frames with my micro-scissors. With some cautious rocking of the shell, it came off cleanly. The result is a quite strong hull with the typical exterior and interior look of a clinker-built boat. Unfortunately, some of the frames have moved a bit, but with a drop of acetone this could be fixed.
I noticed, that the frames did not glue to the wash-strake, which is actually good, because on the prototype they did not continue to this strake, but ended under an in-whale. I will have find a way to cleanly cut the frames at the appropriate height and then continue with installing the cant-frames, in-whales, floor-boards, seats, etc.
I am actually wondering now, whether I could have assembled the hull in traditional clinker-fashion, with ‘edge-fastening’ the strakes only and then inserted the frames prototype-fashion afterwards. On the other hand, gluing the stem-keel-combination to the tied-down frames gave a rigid back-bone to work from. So this was probably the best way.

Cleaned up hull
Gunwales and inwales installed
Floor-boards installed Stern-sheets, rowing seats etc. installed
Foot-rests installed
Design of the row-locks Kitting out the jolly-boat Kitting out the jolly-boat Kitting out the jolly-boat

After some deliberations, I decided to cut the top of the frames back to gunwale level using a sort of micro-scalpel made from a piece of razor-blade just under 1 mm wide and held in a holder meant for that purposes (they come from the biological/medical realm).
Next went in the gunwale, laser-cut strips of paper 0.35 mm wide and 0.12 mm thick, and the inwales on which the seats rest, 0.5 mm x 0.12 mm. These were all lacquered in.
On the prototype the floorboard, of course, were individual planks, but aligning them properly would have been rather difficult, so I cheated a bit and joined them. This will be barely visible under the seats eventually.
As my building was not as precise to the drawings, as I would have wished, the stern-sheets and the little platform in the bow required a bit of trial and error, and re-drawing for the laser-cutting. Still a bit of sanding to fit was required. Sanding paper is not that much fun, but re-soaking it in lacquer after a few strokes with a diamond-file keeps fraying under control.
I also laser-cut some foot-rests for the rowers – these parts are double layers of paper, with the actual rest about 0.2 mm x 0.2 mm in cross-section
A couple of small details were still missing, including the rubbing strake, for which again 0.2 mm copper wire was used, the stanchions under the seats, and the row-locks.
The stanchions were composed from three layers of laser-cut paper. Perhaps I should have milled them from brass rod, but I was somehow too lazy to take out my micro-mill.
The row-locks actually form the stanchions for the wash-strake, which structurally and strictly speaking is not part of the hull, but attached to it to heighten the free-board of the boat. They consist of two wooden clamps on which the actual row-lock in cast bronze sits. The wash-strake has square cut-outs for the oars, which are closed with wooden ‘shutters’ fitting into bevelled slots. To illustrate this, I enclose a drawing by a colleague and expert on the Imperial Navy boats, who sadly died last year much too young.
The basic shape of these tiny specs of paper were cut out using the laser-cutting and lacquered into place. Originally, I had envisaged to fashion them from brass, but had the feeling that they were just too small to make this practical. I decided to show the locks closed, which saved me the trouble of having to cut out the square openings in the wash-strake. I just little scored them with a not too sharp scalpel.
With this, the boat is ready to be painted. There is still some iron hardware that has to go on, but this will be installed after the painting, as it is supposed to be galvanized iron. I am actually not sure, whether the iron-work was painted over or left bare, but think it will add more detail to leave it bare.
December 2022 - Painting the Jolly-Boat began with applying a few coats of white overall. According, to a 1874 ordinance, the boats where to be painted white outside and inside, the top two strakes black, while the rubbing strake between them was left natural wood, as was the top of the wash-strake. Natural wood were also the seats and stern-sheets. The rowing-locks were bronze and were left bare.
The boat still has to be kitted out with some galvanised iron-work and, of course, all the equipment such as the oars, fenders, a water-cask etc. There is conflicting information, as to whether the mast and the sails would have been stowed in the ‘ready-boat’.
Somehow, I am not really satisfied with my paint-job. I didn’t get the colour of the seats etc. right, they look too reddish. I hope a wash of light ochre will correct this. I also had great difficulty to paint the rubbing-strake from a 0.2 mm wire cleanly. I tried to do it freehand, but perhaps should have masked it …

Painting the interior
Painitng the hull
Finished interior Finished hull
Bundles of oars in place
Bundles of oars
More gear Top view with hoisting chains Another view
Jolly-boat and second cutter
Jolly-boat, gig, and cutters (left - right)
Cutters, gig, and jolly-boat

February 2023 - I adjusted the colour of the seats etc. somewhat and also worked on the rubbing strakes. For this I got myself a couple of markers with acrylic pigment paint (Faber-Castell Pitt Artist Pens with fine hard tip and soft brush-like tips) in various ‘wood’ colours, which really turned out to be useful for touching up etc.
Then I turned my attention to the oars and with a bit of trial and error managed to produce relatively reasonable laser-cut parts. Each oar is lacquered together from three layers to simulate the shaping. The round was build up with more varnish and they were finally painted in wood colour and the iron band around the blade simulated with my 0.1 mm marker pen. Not sure, whether they should be black though, as the original specification called for copper bands. There are a lot of unknown details. I know from the sources that the oars should be stowed ready for use in order of the benches, the outer pair for the first bench in the bow and so on. However, I don’t know how they would have been secured for the sea, probably with a rope around the benches. However, laying out the oars like that would have meant that there would have been no space for the men to step into the boat when lowered. So, I arranged them in bunches alongside.
I also realised that I forgot the spur for the heel of the mast, so this was added.
While arranging for the hoisting chains on the covered boats was easy, here it is a rather flimsy affair and I am not sure that it will work, as they are only glued. Likewise, the stays. The chains were simulated by drilling together two 0.2 mm wires until the pitch was about (without measuring) the length of a ring in the chain. Two of those drilled-together wires were drilled together. The overall appearance is roughly like a twisted chain.
Boats need rudders, so I drew one and cut it from Canson-paper in the usual way. When hoisted, the rudders are unshipped and stowed in the boat. However, I don’t really know where and how.
Stowage of various items is another uncertain point. There are a lot of items in the surviving inventories, such as an anchor, a small water-cask, a compass and a boat-hook, but I do not know how and where they were stowed. So I will omit them from the already quite crowded looking jolly-boat. The only thing I made were four fenders that are hung inside the boat.
With this the jolly-boat is complete.
In parallel I worked on the second cutter that also will be shown covered. As this is the same process as for the other covered boats, I do not show the process again. Just a couple of shots of the collection of finished boats.

Completion and Assembly

October 2021 - Basic paintwork: Normally, I leave painting as much as possible to the very end, just before the assembly stage. This avoids damage to the paintwork by handling the model or the problem of removing dust from it. However, I felt that the project had progressed to a point, where I wanted to see how everything comes together. This also boosts the motivation, rather getting lost in fabricating endlessly little pieces. So, the model was given a good cleaning to remove dust, grease etc. The sequence of colours had to be carefully considered in order to work from the light ones to the dark ones. I also wanted to work inside out, because in this way masking was facilitated.
The whole paint-work is done with acrylics from Vallejo (marketed in France under the brand ‘Prince August’) and Schmincke (a German manufacturer).
Hence, I started with the white of the inside of the casemate, the bulwark and the walls of the deckhouse, which was spray-painted with the airbrush. Unfortunately, I had some trouble with the airbrush that had not been used for a while. Apparently, some paint had accumulated in the nozzle from insufficient cleaning over time. This particularly affected the white, which seems to have comparatively bigger pigment particles and is more difficult to spray anyway. Due to the various bits and pieces added to the bulwark etc., it is virtually impossible to rub down the paint and begin afresh … so the white paintwork is not as good as I had hoped for …

The decks were not originally laid in wood (with the exception of the quarter deck and the floor of the casemate) or covered in linoleum at that time. They appear to have been painted with a mixture of tar and black oil-paint, with sand mixed into to provide a non-slip surface. I assumed that this mixture would attain a dark greyish colour with time due to weathering, similar to older tarmac. Prince August 996 (German ‘Panzergrau’ - tank-grey) seemed to be a suitable choice. All the deck areas were sprayed white together with the other parts to give a better key for hand-brushing. I began with painting the kicking-strips and water-ways between the bulwark stanchions and then progressed to several coats on the deck areas. All this painting was done by brush, as it would have been virtually impossible to mask-off the bulwark.

The paint-schemes of the Prussian and then Imperial German Navy ships are reasonably well known for the years after 1867, as the ordinances were published in official gazettes that have survived. For the first couple of service years of SMS WESPE, the 1874 ordinance paint-scheme would have been applicable. This specifies that hulls below the waterline were to be red and above black, with a white boot-topping; another white strip was to be painted below the main rails; all ginger-bread work in white as well as all superstructures and deck-houses, ventilators, etc. Funnels and masts were to be painted yellow (buff). Photographic evidence indicates that there were some variations to this scheme for SMS WESPE, but I will discuss these, when I come to describe the painting of respective parts.

Photograph of 1876 of SMS WESPE
Basic paintwork
Basic paintwork Basic paintwork Boot-topping and striping applied
Boot-topping and striping applied Wooden decking for the barbette and the forecastle
Forecastle decking put into place temporarily
Rear deck with sky-lights and bollards installed

First, the narrow visible part of the underwater hull was painted in Vallejo 71.269 (red RAL 3000). This area was then masked off with Tamiya masking tape. The inside of the hull was also masked and the hull sprayed black.
The bulwark-rail appears to have been varnished wood. It was first given a coat of Prince August 77 (bois-wood), followed by a light wash of 834 (bois transparent), which has a slightly lighter tone, followed by another light wash of Vallejo 71.074 (beige). Finally, a very light wash of Vallejo (transparent orange) was applied, which gives the wood a deep, warm tint.
The images above show the ‘raw’ paintwork. It still needs to be touched up and items such as the scrollwork needs to be refined. Eventually, there will be also a light weathering and ‘griming’ with pastels – the idea is to just show the effects of being in use, but with good maintenance.
According to the 1874 ordinance on paintwork, the ships were to have a white boot-topping stripe and a somewhat narrower white stripe just below the main rail. This scheme is clearly visible on the old photograph shown in the previous post. At that time also all the scroll-work was to be painted in a sober white, rather than the ochre/gold of later paint-schemes.
It occurred to me that the easiest way to apply the white stripes on such a small model would be to cut narrow strips of white decal sheet and to place them appropriately. However, the latter part resulted in a lot of stress, fumbling and cursing. These long, narrow strips needed a lot of coercing and touching up with white acrylic in places. As I do not work with decals very often these days, I did not have any decal-softener to hand, which might have made this operation somewhat easier. In the end, the strips had to fixed additionally by infiltrating dilute satin varnish underneath them with a brush. In order to blend everything together, the hull then was given a coat of satin varnish. Perhaps the Prince August Air varnish was too viscous still for the air-brush, but when sprayed on it turned out rather matt and made the hull grey! Brushing on another thin layer got me over the shock moment.
Perhaps it would have been easier to air-brush everything in white and then cut a narrow strip of Tamiya masking tape to mask the area of the white stripes and also to mask strategically for painting the hull in red and black …
The scroll-work at the bow and stern then was picked out in white acrylics using a spotter brush and a (reasonably) steady hand.
I also painted the only two pieces of wood decking on this ship, namely that on the forecastle with the distinct radial plank pattern (to minimise blast damage from the heavy gun) and within the barbette. The planks had been engraved a long time ago already with a hand-graver. The pieces were given a base coat of Prince August 77 (bois-wood) with the air-brush. This was followed by a light wash of 834 (bois transparent), which has a slightly lighter tone, applied with a flat hair-brush. Some planks were given another light wash of Vallejo 71.074 (beige) with a small brush. The planks then were followed with 0.05 mm black pigmented ‘fine-liner’. The excess was immediately wiped off with a clean finger-tip. In this way a narrow to scale seam remains.

The rear deck was fitted with the brass skylights that illuminated the quarters of the officers and other rooms. These were like portholes, but not moveable and had thick glass inserts. On the underside the inserts were shaped as multifaceted pyramids to collect and distribute the light from the deck above. The brass insert were turned and the glass simulated by pushing the brass parts into a drop of Acrifix 192 on a piece of smooth aluminium foil. The bright side of the aluminium-foils imparts a glass-like finish to the cured Plexiglas glue disc. I left the brass bright for a bit of contrast and interest to the deck. At the moment it looks to ‘model-like’, but over the years the brass will dull by oxidation to a more realistic colour and sheen – though I have no information on what they really looked like at that time. The glasses presumably dulled with time by the crew walking over them. It might have been better to imitate with a drop of white glue instead.
The double bollards and coal-scuttles (not visible on the image) were painted black as per prototype and installed
.
Painting the various parts takes quite a bit of time. Some parts can be spray-painted, while other parts need to be brush-painted because either they are difficult to mask for different paints or because the parts are too delicate for this.

November 2021 - Fitting out the barbette: The deck of the barbette was fitted with the pivot, races for the gun and the rack that is used in training it. These parts were made a long time ago. The races are turned from steel, because I always think nothing looks like metal as real metal. Although, the races were probably rolled iron (like railway tracks), they looked to bright. So they were painted black all over and then the areas that likely show wear from the rollers of the lower carriage were rubbed with a lead pencil. In some areas also the paint come off again. Overall this gives the races a used look. The toothed rack was bronze and hence was made from bronze.
There is also the lid of the opening through which the powder-charged was man-handled up from the powder-chamber beneath.
The barbette was further fitted out with the ladders that allowed the gun-crew to scramble over its sides into it and with the racks for the ready-ammunition. Also installed were the gratings over the stairs down into the crew-accommodation below the barbette (which also housed the cranking mechanisms for turning the gun) and over the hatch through which the shells would be lifted up. These gratings are somewhat conjectural, as the existing drawings could also be interpreted as showing stairs. However, I assume that hatch down to the turning mechanism must have been covered to prevent crew from tumbling down, but also open to allow voice communication with the guys cranking away. For the access to the shell-room, the grating must have been hinged in some way. There was a small gallows-like crane above it to allow the shells being lifted up.
Also, there is a box in one corner with a kind of rack attached to it. Their function cannot be deducted from the drawings and the hand-written explanations are not readable in the scans available to me.
The next step will be to install the various portholes in the deckhouse and the hull. Their actual look is quite well-known, as one specimen has been recovered some years ago from the wreck of SMS SALAMANDER off a Dutch beach and which is now in private hands and of which I obtained pictures. However, on the model only a narrow brass ring will be visible from the outside. They were actually very small, only about 16 cm in diameter, which translates to 1 mm on the model.
My idea was to dip thin-walled pieces of brass tube into Acrifix 192, as was done for the skylights, but this glue is too viscous into the 0.8 mm diameter opening of the brass tubes. I have to figure out a different way …

December 2021 - An enigmatic feature in the barbette - On the plan view of the original drawings from the mid-1880s two enigmatic features appear, but they are not represented in the cross-sections, which could have provided further insight. These features have puzzled me for a while until I realised that the oval shaped items look like the cross-section of a rifle-butt – we are looking down onto two rifle-racks. This interpretation was confirmed, when I came across a later drawing that showed the same feature, but with an annotation.
Warships at all times were provided with some small arms to fend off boarding-parties, or to form boarding- or landing-parties themselves. According to RECKENDORF (1983) ships of the Imperial German Navy at that time in question were provided with the Jägerbüchse 71 and the appropriate side arm. The Jägerbüchse 71 is a refined version of the Gewehr 71 that was introduced after the Franco-German War 1870/71 to replace the famous ‘Zündnadelgewehr’. Jäger stands for hunter and Büchse for rifle. Compared to the standard infantry weapon Gewehr 71, the Jägerbüchse was more precisely manufactured/inspected and had a finer trigger, as the Jäger-batallions received better gun training and a good proportion recruited from the hunting and forestry professions. Both weapons were still single-loaders, chambered for metal cartridges.
In the cited book and on the Internet I found good photographs of the rifle. At 1:160 scale it is only 7.8 mm long, so requires considerable simplification. I drew the stock to be cut from two layers of 0.2 mm thick Canson-paper using the laser-cutter. At the same time, I drew my interpretation of what the rifle-rack might have looked like, as I only had the plan-view.
The individual parts were laminated/glued together Zapon-varnish and painted using Vallejo acrylics.
The rifles were fitted out with barrels from appropriate lengths of 0.2 mm tinned copper-wire. The rings that fix the barrel to the stock are flattened 0.1 mm tinned copper wire. As I still did not get around to build the miniature rolling mill for which I had drawn plans years ago, I flattened the wire by rolling a piece of round steel on a thick glass-plate.
As the tiny rifles are difficult to handle, they were glued into the already assembled rack at this stage using some satin acrylic varnish. Originally, I intended to complete them with trigger-guards made from 0.05 mm wire, but I did not manage to glue down the tiny 0.4 mm diameter rings, so I only added shoulder straps from rolled 0.1 mm wire that was painted in brown leather colour. These were also attached using satin acrylic varnish.
Given the amount of work that went into constructing these tiny rifles, I decided to only equip the most visible rack with them.
 

Barbette decking with gun  pivot and races Shell-racks, ladders and hatchways
An enigmatic feature in the barbette
Laser-cutting template for rifles and racks
Jägerbüchse 71 in 1:160
scale
Rifle-rack Painted and assembled steering stand Painted and assembled steering stand Pantry skylight
Pantry skylight Officers' mess skylight Officers' mess skylight

November 2021 - Assembly of the steering-stands - Much time has been spent painting various details, often beginning with a basic layer applied by airbrush and then detailing with a hairbrush. In many cases several coats of paints and washes are needed. In particular parts that are meant to resemble varnished or oiled wood will need a base-coat followed by washes of darker paint and again followed by several coats of varnish to increase the ‘depth’ of the colour. ‘Oiled’ wood is finished off with Vallejo satin varnish, while ‘varnished’ wood is finished off with a 1:1 mixture of Vallejo gloss and satin varnish. The satin varnish is not glossy enough to simulate varnished wood.
Above are a couple of shots of the assembly of the two steering stands from the laser-cut parts produced earlier. The steering wheels and the brackets are painted in Prince August (Vallejo) transparent ‘mahogany’, while the gratings were given a base-coat of Prince August (Vallejo) ‘wood’, followed by washes of Schmincke ‘ochre’ to simulate teak.
I have to take some better close-up shots, but the steering-rope leads into flared down-pipes fashion from 0.6 mm OD/0.4 mm ID brass tubes by widening one end.
BTW, the steering rope looks a bit like an anachronism in 1876, when steering chains and even steam-steering was available. However, it seems that warships have retained this simple mechanisms for a while, presumably because it was easier to repair battle damage off-shore.


January 2022 - Completing the skylights - Work on the skylights continued with the one over the pantry. The basic structure had been completed quite a while ago, including the protective grilles. Now, the upper part was painted in Vallejo ‘wood’ and then with a couple of coats of Vallejo ‘transparent mahogany’. Several thin coats of Vallejo ‘satin varnish’ gave the ‘wood’ some depth. The lower part was just painted white.
A chimney or stove pipe was turned from a piece of 2 mm brass rod and slotted at the top to simulate the vents. It was chemically blackened to simulate the appearance of heated metal painted black.

I only had side and plan views of the belfry and there is no photograph in which it is really visible. The bell of S.M.S. NATTER survived and is now in a museum-collection, so that we know what is looked like. I invented the shape of the belfry and drew it to be laser-cut. The parts were assembled in the usual manner using zapon-varnish. The bell was rough-turned on the watchmakers lathe and the actual ‘bell-shape’ finished with a hand-graver. I don’t really know, whether this is correct, but the belfry was painted white.

Finally some ‘hinges’ to the raising panels of the skylight were added in form of pieces of 0.1 mm wire.


The skylight above the officers’ mess in the rear of the ship is the only one for which a close-up photograph exists, so the details can be reproduced with reasonable confidence.


The basic structure, again, had been built a long time ago and now it was painted as per prototype.
The top of the skylight was removable and presumably could be replaced with a more solid hatch-cover in bad weather – the main deck is only a couple of feet above the CWL ! The tarpaulin to cover the hatch would be held down with battens for which clamps were provided on all sides. The battens and the clamps are laser-cut from 0.2 mm Canson-paper and were then soaked in zapon-varnish to harden them. The battens were built up from two layers. Battens and clamps were assembled and then the assemblies cemented to the skylight using satin acrylic varnish.
As opposed to the others, this skylight has outside protective grilles, that are fastened with hinges. The frame had been etched from 0.1 mm thick nickel-silver (I couldn’t get brass sheet that thin at the time). Etched-in notches on the underside ensured that the bars would be equally spaced. The bars are made from 0.1 mm brass-coloured copper-wire glued in place with varnish. This assembly then was cemented to the skylight using acrylic varnish.


January 2022 - The mast - These boats initially had a very simple one-piece mast for signalling purposes. At a later stage, a more complex version with a topgallant mast and cross-tree was installed to allow for a better spread of signal flags and the cones that indicated the rudder direction to facilitate flotilla manoeuvres. However, the model will be fitted with the simple mast only.
The mast itself was turned from a 1.5 mm steel-rod with a shoulder to accommodate the four shrouds and hangers for the signal halliard blocks. The information is rather scarce with only the earliest picture of S.M.S. WESPE showing the whole mast and the lithographs showing the lower part. The height had to be estimated from the photograph, while the lower diameter could be taken from the lithograph. The belaying pins for the signal halliards are set into a wooden shelf, rather than into the spider band. This wooden shelf was fashioned from a tiny piece of bakelite paper into which the appropriate holes were drilled before.
Belaying pins of 2 mm length and 0.2 diameter are a modelling challenge. A first attempt using lengths of wire and drops of white glue to represent the handles did not produce consistent and satisfactory result. Therefore, I decided to attempt to make them the ‘proper’ way, i.e. to turn them.
After a couple of failures (though the first two attempts went well), I arrived at a procedure that produced consistent results with a low failure rate. The key is to do the turning in small steps to minise cutting forces, having a sharp tool, set to just a tad below centre-height. The material used was 1 mm mild steel-rod because the brass I have available would have been far too soft for such tiny pieces. Although the belaying pins are a bit oversized for flag-halliards, making the pins was a bit of a proof of concept with my follow-on project in mind, where I will need quite a number of such small ones.
In a first step, the 1 mm diameter was reduced to 0.4 mm over a distance of 0.8 mm. T
he handle then was shaped using a 1 mm mouse-tail and a tiny flat file. Then the diameter below the handle was cautiously reduced to 0.2 mm. The first cut here is quite critical, as the square cutting tool cuts over its whole width of 0.4 mm. In several 0.2 mm steps one then works towards the target length of 2 mm. When trying to reduce the diameter below 0.2 mm, the finished belaying pin usually shears of cleanly from the stock. The pins then were chemically blackened.
The mast was given a base-coat of Vallejo 71.033 Yellow Ochre, a wash of Schmincke 28610 Ochre, and a very light glazing of Vallejo 70.956 Clear Orange. Once the blackened belaying-pins had been inserted the whole assembly was given a light coat of a mixture of Vallejo satin and gloss varnish to make the mast resemble oiled wood. The shoulder, where the shrouds rest probably had been protected by a copper sheathing and this was imitated by paint.

1st step in turning micro-belaying pins 2nd step in turning micro-belaying pins
3rd step in turning micro-belaying pins
Final step in turning micro-belaying pins
Finished mast
Funnel and boiler-room ventilators Funnel and boiler-room ventilators Fore-deck painted Seams picked out and varnished matt
Populated quarter deck Populated quarter deck

February 2022 - Funnel and Boiler-Room Ventilators - Not really much to write about, as the parts had been built quite a while ago. Just a bit of assembly work and painting. Unfortunately, I forgot to take a picture of the assembled parts before painting. Just before painting, also the turning handles for the ventilators were glued on using shellac. These are made from 0.1 mm wire flattened at the ends using a specially made die in my little jewelling press. They are extremely delicate.
The colour of the funnel and the boiler-ventilators may be debatable. Research on possible colours arrived at nothing. The 1874 ordinance states that funnels should be ‘yellow’ or ‘mast-colour’, but I could not establish what this yellow actually looked like. A colleague recently discovered an 1890 ordinance that specified that the ‘mast-colour’ should be mixed from 460 g dry white-lead and 260 g dry light ochre pigment with 300 g varnish, to be diluted for application with a further 310 g of varnish. The ratio between white-lead and light ochre suggests a rather light yellow hue, but we do not have a real clue to its actual hue. Circumstantial evidence, such as paintings, seems to suggest that in those early years of the Imperial Navy the yellow was indeed lighter than in later years. Preserved models from the later 1880s show a darker and murkier yellow than one might expect from the above recipe, while the strong yellow of the late tropical livery of the Imperial Navy had a decidedly orange tint. The buff/yellow of the RN seems to have undergone a similar development, while the French navy used a rather murky beige.
The first photograph of S.M.S. WESPE of 1876 must have been taken either on a wet collodium or on a dry gelatine plate. Both of which have little red sensitiveness and, therefore, represent colours at the ‘warm’ end of the visible spectrum darker than one would expect from an orthochromatic film. The funnel thus appears considerably darker than the white of superstructure. After some colour testing, I finally decided on Vallejo Model Air 71.107 ‘US interior yellow’.
The boiler-room ventilators show the same level of grey as the funnel and are decidedly darker than the other ventilators. This indicates that they were also painted yellow, while the 1874 ordinance prescribed white for ventilators. Given their closeness to the funnel it does make aesthetic sense to have them painted yellow.
Another issue is the interior colour of the ventilators. We seem to take it for granted that ventilators are red inside mostly, but it is not clear when and how this fashion came about. Perhaps they were painted red to resemble the copper that was frequently used in their manufacture in earlier years? On the early photograph the interiors appear very dark, but due to the limited red-sensitivity this is not conclusive evidence that they may have been painted black. Nevertheless, in the end I decided on black for the interior of all ventilators.
February 2022 - Quarter-deck v4 - While the wooden quarter-deck previously produced (v2) was not entirely bad, it lacked the crispiness I had wished for and also the colour was somewhat murky, more like oak, and not like the teak it was probably made from. In addition, I found a mistake in its shape that could not be corrected.
This quarter-deck is somewhat unusual in lay-out, as the planks are radiating with the gun-pivot as centre. This lay-out probably was chosen to minimise the effect of the certainly considerable blast from the 30.5 cm-gun. Apart from the fact that most wood-species would be to coarse at 1:160 scale, it would also be a challenge to produce such deck with tapering planks only 0.4 mm thick. A painted version renders more likely a realistic representation, is technically easier to achieve and more in line with the style of the model.
The shape of the wooden deck was cut from a 0.4 mm thick sheet of bakelite-paper and carefully fitted to the hull of the model, which was quite a bit of work given the multiple curvatures. The caulked seams were indicated by narrow engraved lines as described earlier in this building log. The holes for all the fittings were also drilled at this stage.
In between, I had tried using black styrene, rather than bakelite-paper as a basis for the decking (v3). The rationale was that I would clear out the engraved lines after painting down to the black plastic. This strategy did not work for two reasons, namely the styrene (Evergreen™ sheet) is much softer than the bakelite and the acrylic paints form a kind of quite soft skin, which tends to rip in flakes when trying to re-engrave the lines, so that I dropped this idea.
The wood character of the quarter-decking was to be achieved by giving each plank a slightly different colour, imitating the natural variability of wood. The piece was given a base-coat of Vallejo Model Air 71075 ‘sand (ivory)’ using the airbrush. In a next step single planks were randomly given a light wash with Prince August 834 ‘natural wood transparent’ or Vallejo Model Air 71023 ‘hemp’ (which turned out to be a bit too dark actually). In a next step randomly selected planks, particularly those ‘hemp’ ones were given a very light wash with Vallejo Model Air 71288 ‘Portland stone’. Another very light wash with Vallejo Model Air 71041 ‘armour brown’, toned down with yet another very light wash using Vallejo Model Air 71132 ‘aged white’, pulled everything together.
To facilitate the picking out of the caulking seams, the decking was given a sealing coat of acrylic glossy varnish. The definition of the caulking seams was enhanced by running the back of an old scalpel along them, making impressions, rather than cutting through the paint. The caulking was imitated using a 0.05 mm marker with pigmented permanent (hopefully) ink. After each line was drawn, the ink was allowed to dry for a few seconds and the excess wiped off with a barely humid finger. This leaves the ink only in the incisions, resulting in a very thin black line. In spite of the glossy varnish, a haze of the ink is left on the planks, darkening them somewhat, but this effect was calculated in, when setting out the original paint scheme.
The surface was lightly rubbed down with an abrasive foam block (as used in mani-/pedicure) to thin down the glossy varnish without damaging the underlying paint. This rather complex procedure was concluded by applying another very dilute wash of Vallejo Model Air 71132 ‘aged white’ and finally a sprayed on coating of Vallejo matt varnish.

March 2022 - Further work on the quarter deck - Having now satisfactory wooden decking for the quarter-deck, this was permanently cemented into place, allowing to progress with the installation of the various bits and pieces that had been fabricated years ago. These include the anchor capstan, the four patent chain-stoppers, chain-bollards (which are hollow and double as a base for the crew accommodation ventilators), various eye-bolts to which stoppers are shackled, that secure the chains during mooring, and the forward pair of mooring bollards.
Probably the only bought-in item will the studded anchor-chain. Recently, some really good 3D-printed chains have become available. My excuse is that that many shipyards did not make the chains themselves either, but bought them from specialised forgeries (apart from the fact that I didn’t want to go insane over making such microscopic studded chains). I choose the smallest size from yxmodels (Product no. YXN700-001). With 8€ plus shipping for a length of 120 mm they are the most expensive (not considering my time) item on board. They are printed in a light brown resin and were given several light dusts with acrylic paint to turn them black without clogging up or cementing the links together. The connecting link with the anchor shackle was bent from 0.2 mm tinned copper wire.
The anchors are held in place with chains attached to the release gear that had already been installed. These chains were imitated by twisting together two strands of 0.1 mm blackened copper wire so that each twist is about the length of the assumed link length. The length of twisted wire then was folded over in half and twisted together in the opposite sense. With some imagination this looks quite like a slightly twisted chain. The anchor were secured in place with a couple of dots of shellack and then release chains installed – which not unexpectedly was a really fiddly task.
I arranged the chains as they would be kept ready for dropping the anchor or in light weather, without further securing by rope chain-stoppers, as I do not have any pictorial evidence for how that would have been done on the real ship.
The quarter-deck later will receive some light weathering and the chain-rails need to be installed, but as they are extremely fragile, this will be put off to the moment, when the model is installed on its final base-plate.

Base-board covered in moulded water-colour paper and primed
Base colouring sealed with gloss varnish
Sea-scape with wave-crests sculpted in filled acrylic gel
S.M.S. WESPE placed temporarily into the sea-scape S.M.S. WESPE placed temporarily into the sea-scape

March 2022 - Mounting the model - The base-plate, a piece of 20 mm thick, MDF, forms an integral part of the display case that had been constructed earlier. To this the model will be fixed with a single wood-screw from the bottom. The hole in the model for this had been drilled early on in the construction process. I did not envisage to have to mount and unmount the model frequently, otherwise I would have embedded a threaded nut into the bread-and-butter hull and used a machine screw instead.
With hindsight, I perhaps should have extended the hull a bit more than just 2 mm below the waterline. The 2 mm are not that much to model the sea, but would translate into a wave-height of around 32 cm or a good foot.
The scenario I imagined for the presentation is that the ship moves in a rather calm sea, but at moderate speed (the max. speed of the WESPE-class was only around 10 kn anyway). The weather is fine, with sun and a light breeze – a summer day on the North Sea or the Baltic.
There is only one image I am aware off, that shows one of the boats moving, S.M.S. NATTER moving slowly along the Kiel-Kanal. Therefore, we do not really know what their wave-pattern would have looked like. The bow is quite full, it has a ram protruding below the waterline, and hard bilges with a flat bottom. In a way, this is the form of our river freighters. Therefore, I looked around on the Internet for pictures that show such ships on the move. Of course, there is a difference in wave patterns due to the restricted water depths in river channels. The wake would be more or less a Kelvin pattern with the waves radiating from the ship with an included angle of around 40°. The base is not much bigger than the ship to allow close-up view of the model, so there is actually not so much sea to model.

I decided to try something new (for me) and instead of sculpting and carving the sea from plaster of Paris, as I had done in the past, I used a sheet of thick water-colour paper. The waves were formed by placing thin scraps of acrylic foam (because I happen to have some) underneath and then gluing it down with white glue, working from the bow to the stern. The space for the model was cut out first, of course. Once the glue set, the paper was trimmed to size. The gaps under the paper were filled with acrylic wood-repair putty and the edges sanded smooth once the putty had set. At this stage also the fit of both, the model and the display case were checked and small corrections made. Finally, the whole base was given a coat of sanding filler to seal the paper and the wood. The edges were sanded smooth again.
Painting proceeded in several steps. First a coat of Schmincke AeroColor turquois acrylic was applied by airbrush. However, the paint was applied in a glancing fashion against the direction of the waves. A second coat using Vallejo ModelAir ‘steel blue’, again glancing, but with the waves was applied. Here in this application, it is not really apparent, but when there are shorter, steeper waves modelled this causes a colour change effect, when you look at the sea-scape from different angles. The front of the waves then was lightened up somewhat by a light spray of Schmincke AeroColor chrome-oxide green and the crest areas further lightened up with a light dust of Vallejo ModelAir ‘hemp’ to give the sea a flatter green appearance. This base colouring was sealed by two generous coats of acrylic gloss varnish applied with a flat hairbrush.
In the next step, the wave crests were modelled using acrylic gel and gel filled with acrylic ‘micro-balloons’. In the past I actually used crystal sugar as a filler, which works very well, as not all crystals dissolve, but remain as transparent parts. I used this even before I became aware of acrylic gels together with wallpaper-glue and this ‘icing’ is holding up well after 40+ years. Part of the bow-wave was sculpted again in this way.
With the sculpting of the wave-crests and foam stirred-up complete, the sea-scape was given several more coats of gloss varnish to smooth it out, playing also with more rough areas behind breaking waves, as these should appear more matt. Assuming that the top of the waves would be more exposed to the action of wind than their front, these areas were also stippled with acrylic gel using a bristle brush, simulating the wind rippling that indicates an incoming gust of wind to the attentive sailor.

Having prepared the sea-scape in this way, the model will not yet be placed irretrievably into it. Filling the gap between the sea-scape and the model with acrylic gel will be left to the very end, so that the model can be removed, should the need arise.


April 2022 - Beginning the assembly - Over the years many parts have been produced and more recently painted. It slowly time to put everything together.
The first step was to semi-permanently install the boat in the seascape. I do not expect to have to remove it again, but one never knows, so I am leaving filling the gaps around with acrylic gel to the very end. The model was screwed to the base from the bottom using a single wood-screw in the middle.
At this point also the deckhouse could be permanently installed. Which in turn allowed to install the various ladders. These had been fitted with ‘brass’ anti-slip pads and shoes to keep them in place.
The various skylights also have been installed and the steering-wheels together with the associated binnacles.
The seams between the deckhouse, the skylights and the decks were touched with paint and some light ‘weathering’ with pastels applied with the idea to ‘pull together’ all parts visually. Thus, corners were touched up in dark grey pastel and typically more worn areas in front of ladders etc. were given a light rub with white pastel. This has to be with restraint, as the boat is meant to be depicted in a relatively new and well-maintained state, around 1878, so not much rust etc.


The turning handles were made from 0.1 mm wire shaped in a die on the jeweller press that also flattened the end uniformly were glue onto the various ventilators. This operation was left to the last moment, as these handles are extremely flimsy and easily damaged or broken off. The ventilators now were ready to be spray-painted.
There is some uncertainty around the interior colour of the ventilators. The interior appears very dark on the earliest photograph, suggesting that they have been either black or red. On later photographs with the black-white-yellow colour-scheme according the 1878 ordinance in some cases the interior seems to be the same colour as the exterior, namely white or yellow. There is no written evidence of a red interior, so I went for black to keep within the somewhat more sombre colour-scheme of the 1874 ordinance.
Given the flimsy nature of all those parts that come on board now, I am working ‘inside-out’, so that I do not need to reach over already installed parts with the risk of breaking or bending something. This requires some strategic thinking.
Now the lower carriage of the gun was finally assembled with the platform for the gun-captain, the shell-crane including its hand-cranks, and one training-shell in its wheeled loading-tray.
The carriage was glued in place on its pivot. Unfortunately, once installed in the barbette many of the little details that took a lot of time to make are not visible anymore. However, I did make the effort, because there may be certain angles of view, where they may be in part visible at least.
Next thing up will be the chain-rail around the deck-house. I think I found a way to simulate the chain, but I am waiting for some speciality wire (0.05 mm Konstantan wire, which is a copper-nickel alloy, which is somewhat tougher than pure copper).


March 2023 - Next, I have put the gun onto the tracks of the lower carriage. It was just glued in place – something I am not entirely happy with considering the top-weight of the barrel, but hopefully I have added enough white glue at hidden places. The original had clamps that go under the tracks, but this was difficult to reproduce at this scale.
The two engine-room telegraphs were installed on the bridge.
I am not sure that these were rigged like that, as the existing photographs are either not taken from the right angle or the resolutions is not good enough for the forecastle is too messy. Anyway, two cable stoppers fashioned from ‘rope’ were attached to eyebolts (which were drawn in the plans) and provide additional security against the anchor-chain flying about on the forecastle
The four anchor cranes were completed with the tackle and temporarily installed. There would have been quite a few metres of the running part to stow securely while on sea. Judging by the photograph of S.M.S. CROCODILL below, it was slung around the cranes in a perhaps not quite so ‘ship-shape and Bristol-fashion’. Anyway, I emulated this on the model.
Next up is the most dreaded part of the model, the installation of the various chain rails. Because of these I hesitated for a long time to tackle this project.
April 2023 - The material of choice is black-oxidised Konstantan™-wire of 0.06 mm and 0.07 mm diameter. Konstantan™ is a CuNi-alloy that is characterised by a very constant specific resistance over a wide temperature range and low temperature extension coefficient. However, I am not interested in these properties, but it is the thinnest black wire I could get and its breaking strength is somewhat higher than that of pure copper.
The idea is to twist together two strands of wire so that the pitch is approximately that of the length of a chain-link. Two strands of this twisted wire then are twisted together in the opposite direction. To the naked eye and with my +3 loupe this looks quite convincingly like a somewhat twisted chain. That is a close as I can get in this scale.
There is a photograph that shows details of the railing on the deck-house quite clearly and there is an instruction book for draughtsmen (WAAP, 1900) that has a drawing of the folding chain-railing as used by the Imperial German Navy. There is a scale bar that allows to calculate the various dimensions and the height tallies with the railings in the lithographs of the WESPE-Class. According to this the stanchions are around 85 cm heigh which translates to 5.3 mm in 1:160 scale. The chain-links are 60 mm (0.4 mm) long with a wire-diameter of 8 mm (0.05 mm).
Years ago, I had drawn my own stanchions and etched them from 0.2 mm brass-sheet. The idea was to solder two together in order to arrive at the correct thickness, without problems with under-etching in my primitive set-up. However, when I recently saw the commercially produced etched stanchions by SÄMANN-Ätztechnik in Germany, I realised that my home-made one could not compete quality-wise. However, their two-chain ones in 1:150 were too high (even at that scale). The three-chain ones, on the other hand, where of the correct height when using the lower ring to simulate the hinge for folding down. With the laser-cutter I also cut some small plates to simulate the foot-plates.
The holes for the stanchions were enlarged at the top with a round burr, so that half of the lower ring would be embedded. It would have been nice to have also photoetched parts for the foot-plates, which would have looked much crisper …
The chain-stays for the smoke-stacks caused me some head-scratching, in particular the connections to the stack and to the deck. The chain was done as for the railings, but with the 0.07 mm wire. Making and fitting shackles of less than 1 mm in length was physically impossible. So, I resorted to some dark grey thread. Not ideal, but there are just some physical limits that are impossible to overcome.
In order to not damage completed work, I am working from the centre of the ship outwards. For this reason, I also had to put on first the inner stays of the smoke-stack and then the railings. As always, close-up photographs are rather discouraging, but the rails look quite reasonable at normal viewing distance (me thinks). A problem is the springiness of the wire, so the double-twisted wire is more forgiving than the simple wire. It is not so easy to shape a nice catena that properly sags downwards, with the upper and lower chain in one plane. Luckily, deviations are only noticeable, when looking straight down. I still have to work on the stays …


Mai 2023 - I have now installed the rails around the deck-house on the starboard-side too. This time a picture with a coin for size reference.
In the meantime, a forum colleague made the suggestion to braid the wires instead of double-twisting them. I think I had tried this earlier on, but the copper-wires were too soft and broke to easily. I’ll gave it a try again with the Konstantan wire, but it still did not work. They used chain on this boat for a lot of things, where today one would find wire-rope instead.
Mast and rigging - As noted above, my intention was to work ‘inside-out’ when installing the rails, so as not to damage already installed parts. I now realised that I should have installed also the mast and its stays first, before the deckhouse rails. So, it was high time to do it now, before going on with more rails.
The pictorial evidence is rather scarce for the early form of the mast. In fact, there is only the very first photograph that shows SMS WESPE being fitted out. All other photographs show later forms, when the mast had acquired a top-mast and a fixed signalling yard. When this was installed is not known. Perhaps around the time of the first minor refit, when the boat-racks were installed, or when she got the conning tower with the search-light on top, as shown by the only other photograph with the black/white/yellow livery (as per 1878 regulations).
The mast had been turned a while ago from a steel rod and fitted with belaying pins. Not sure, whether I showed already pictures of this.
It seems that there were double stays leading forward to the front of the boiler-casing, but there are no pictures that show how they were fastened and the drawings are silent on this detail. So, I assumed that there must have been ring-bolts rivetted to the casing. In fact, I should have installed this before painting and installing the casing, but did not have sufficient foresight. Hence, they had to be ‘retro-fitted’ now. Then there is a pair of shrouds on each side – quite a few for a simple pole mast. These shrouds seem to have been made fast on eye-bolts between the rail-stanchions on the deck-house, for which there is a vague indication on the drawings. Again, there is no evidence for how they were set tight. I gather it must have been some hearts with lanyards between them.
I assume that the stays and shrouds were wire-rope. On some later picture it vaguely looks, as if these ropes had been served all over. To imitate such ropes, I have collected over the years electronic copper wires and stranded wires and are spun with silk (as used in high-frequency coils). I choose a 0.15 mm wire for the purpose here. The silk in my case was green, so it had to be given a light coat of black paint first.
Before the shrouds and the stay could go on, the signal halyard blocks had to be installed. I assumed that these were stropped double-blocks, but this is purely conjectural, based on the number of belaying pins. For the signal halyards I used some of my treasured nylon-thread as used in the old days for mending ladies’ stockings – a tightly spun two-ply thread that does seem to be out of production now (better than the fly-tying threads). The lay still was not tight enough, so I twisted it a bit more and stabilised the twist with a light touch of varnish.
At that time a steamer should have carried a steamer-light at the mast at night, but the available photographs are not are not clear enough to be sure that it would have been hoisted from a halyard in front of the mast. I just installed the halyard without attempting to model any additional arrangements, such as guiding ropes. The lithograph from the early 1880s also shows a crane for light just in front of the casemate, but it is not visible on the photographs.
Making working hearts for the stays would have been asking a bit too much, so I simplified the arrangements and just provided seized eyes at the end of the standing rigging and roved the lanyards through them and directly through the eyebolts. I gather this is good enough at this small scale. It was difficult enough to install all this without destroying other things already put into place.



June 2023 - Foredeck Chain-Rails - I was a bit worried about the various corners these chain rails take on the foredeck – not a problem in real life, but the fake chain made from double-twisted turned out to be surprisingly compliant, without getting kinks that could not be straightened out.
Also, the ventilators for the crew-quarters beneath the foredeck were installed now.
Next thing on the to-do-list will be the anchor-buoys that, according to the photographs usually were tied to the rails near the anchor-davits.
Apropos anchor-davits: I realised after taking the above pictures, that I didn’t put them back yet – I had taken them out to facilitate the threading of the chain-rails.

July 2023 - Anchor-Buoys - A fairly conspicuous detail on warships of that period were the buoys for the bow-anchors that were lashed to a convenient place near the anchor-davits, when not in use. Their purpose was to mark the location of the anchors. It was important to know, where the anchors were laid out in order to detect, whether they may have shifted and to indicate their location to newcomers, so that they don’t throw their anchors across yours, which could cause trouble, when you have to raise your anchors.
At the time of SMS WESPE, the buoys were made from galvanised sheet-iron and had the shape of two cones joined at their base. A web of served wire-rope gave two attachment points, for the rope with which they were attached to the anchor and for a fishing-lanyard. As per an official instruction sheet, the sheet-metal was supposed to be painted in red lead-oxide primer. There is, however, no clear information in what final colour the buoys were to be painted. Typically, modellers chose green for the starboard anchor-buoy and red for the port one. There is a certain logic in this, because in this way the anchors can be identified, even if the boat may have swayed around them.
There is a picture taken on board of S.M.S. HERTHA around 1876 that shows seamen working on such anchor-buoys: There are two buoys visible, one on the left in a quite light grey and another one, almost covered by the seaman at the front, which is a lot darker. Considering that the glass-plate negatives of the time were less sensitive to red than to green, which would appear darker in the positive print, one can conclude that the buoy on the left was probably painted green, while the other one was probably painted red. This is so far the only evidence from the period in question for them having been painted in different colours.
While the shape is seemingly simple, it is not so easy to produce and to manipulate. The two cones have to be turned separately and then fitted together. I choose Plexiglas for ease of gluing the halves together. Turning proceeded in steps: first the diameter for the wooden caps was turned and a groove to mark the overall length, then the top-slide was set over at an angle of 28° to turn the cone. As per prototype four notches were cut into the caps using a pointed cutting tool set with the cutting-edge vertical. Finally, the cones were parted off. The two cones were glued together making sure that the notches for the rope-web were offset by 45° at each end.
Another consideration was how to reproduce the carefully spliced web of served wire-ropes. I decided that tightly twisted 0.1 mm diameter tinned copper-wire would be the best route. Four strands of twisted wire with a loop at the end were produced and slipped over a ring of twisted wire which then was soldered closed. The four strands were distributed equally around the ring and fixed with a tiny amount of varnish. The arrangement was slipped over the buoy, gathered together at the end and secured with a short winding of thread soaked in varnish. One of the strands was bent into an eye and secured with a half-hitch of thread. Finally, all the ends were trimmed down to the binding.
The buoys then were sprayed red and green respectively and once the acrylic was dry, the wire-rope was picked out with a sepia artist’s marker pen (which seemed to give more control over the paint flow than my brushing technique). I did not take any pictures of the manufacturing process, as each step was actually quite straightforward.
On several photographs one can see that the anchor-buoys were tied to the chain-rail near the rear anchor-davit. I don’t know how long the rope was with which the buoys were tied to the anchors, but I would think it would in the order of 20 m, accounting for typical anchoring depths. A thin ‘rope’ was produced on the rope-walk from slightly brownish material, assuming that such rope would be heavily tarred to resist its permanent exposure to the elements. A ring was formed and tied together with the buoy to the rail.

October 2023 - Some ‘clutter’ on the deck-house - I found producing the stanchions for the awnings too much of a challenge at this small scale and didn’t like the look of them anyway. So, I did not install them on the model (and even omitted their sockets, as I did not have any information on how these really looked like). My excuse was that the model will be shown in a semi-battle-ready gun-exercise situation, where the stanchions would be stowed.
There are quite a few stanchions, which are tapered and slightly curved at the upper end with the ring. The upper section is round, while the lower section that fits into the sockets is square. According to one picture available, it seems that the stanchions were stowed in sort of racks along the rails of the deck-house when not in use. The same applied presumably to the wooden beams that formed the centre ridge of the awnings.
Mass-producing these stanchions that would be barely seen, when stowed in the rack, from brass-wire seemed a disproportionate effort. Hence, I decided to laser-cut them from card-stock. They are very flimsy and were stiffened in varnish before proceeding them to paint them with acrylic paint. The paint was applied quite generously to have a sort of rounding effect.
I could not find any picture that showed the stowing racks, so I had to invent something that seemed reasonable. Somehow the racks seem to be associated with the rail-stanchions. I devised a sort of cage with a laser-cut base and uprights made from thin tinned copper-wire. The racks also accommodate the (foldable) wooden beams that support the awnings amidship. In addition, it seems that the mops etc. for the gun were stored in these racks.
Crane above the projectile hatch - Projectiles and powder bags were stored in different compartments for safety reasons below the barbette and in consequence, each had its own hatch. That for the powder bags was round, while the one for the projectiles was rectangular in order for them to lifted out on a trolley.
As discussed in a much earlier post, the lithographies from the early 1880s do not show any mechanical device to help the 330 kg heavy projectiles from their storage space to the floor of the barbette. Man-handling clearly is out of question. However, drawings related to a later re-fit show inside the deckhouse a winch marked as ‘winch for the hoisting of projectiles’ and a simple derrick-like wall-crane bolted to the rear wall of the barbette. In these drawings it is not shown how the runner rope would have been led from the crane to the winch, there most have been some sort of opening in the rear of the barbette. Also, not clear is, how the in the gun-crew in the barbette and the men in the projectile storage room would have communicated with the winch-men inside the deckhouse.
Interestingly, in the same drawing a simple wall-mounted crane for the powder-bags seems to be indicated, but no winch belonging to it. Perhaps the 45 kg bags were hoisted up with the help of a tackle.
The small detail (about 3 mm by 3 mm) of the projectile crane caused me a lot of aggravation and took a long time to fabricate. I drew it in several versions to be cut from Canson-paper on the laser-cutter until I arrived at a solution that worked. Assembly was also rather difficult and several parts jumped into the invisible black hole on the workbench, so that they had to be replaced. The pulley was turned from 1 mm steel rod.
The hook was fashioned from tinned copper-wire and the shape built up from Vallejo acrylic paint ‘oily steel’. A short piece of rope was spliced into the ring and the spherical weight built up from acrylic paint.
Likewise, the powder-crane was cut from two layers of Canson-paper, soaked in varnish and painted. There is no information on what it may have looked like. I did not model the tackle, assuming that during the gun-drill in which the model will be presented, no charges were used and therefore, the tackle was not rigged. Only a shackle was fashioned from tinned copper wire.
Lamp-boards - Another small item on my to-do-list were the lamp-boards. According to the very first photograph of SMS WESPE these were placed at the front end of the deckhouse surrounding the barbette. In the lithograph and in later photographs they are shown on short poles towards the rear end of the deckhouse and raised above the rails.
These lamp-boards were laser-cut in three parts from Canson-paper and painted appropriately after assembly. The petroleum-lamps are not shown, as during day-time they would have been cleaned and then stored in deckhouse(?).


November 2023 - Banisters at Stairs - These banisters are flimsy matters so that I left them to the end as far as possible, still following the pattern to work ‘inside-out’ in order to not damage delicate items.
The information is somewhat patchy as to what the banisters actually looked like. They are represented in the lithographs and on one or the other photograph, one can see parts of them. Basically, there are two types: bend pipe-work and straight stanchions located in sockets that support a wooden rail.
As the metal parts are laid out in yellow on the lithography, they appear to have been made from brass (or bronze). One picture shows bare metal for the pipe-work. Hence, I decided to make them from bare 0.3 mm brass wire. At the moment this looks rather bright, but I assume that it will tarnish somewhat with time.
The pipework ones were bent over a scale copy of the lithograph. The ends, where they attach to the stairs appear to have been flattened, which duly was represented on the model.
For the ones with wooden rail at the end of the deckhouse, I cheated a bit and instead of having individual stanchions, I flattened the wire in the area of the wooden rail to have a support for it and bent the stanchions down sharply. The sockets were cut from 0.5 mm OD brass tube, which is a sliding fit on the 0.3 mm wire. The ends were milled down to the appropriate angle. The wooden rail was fashioned from two laser-cut strips of paper laminated together with varnish. With hind-sight, fashioning all parts from brass and soldering them together in a jig might have given crispier results.
All parts were cemented in place with clear varnish.

January 2024 - Completion of the staying of the funnel - According to the principle of working ‘inside-out’, installation of the outer pairs of funnel stays had been left to a moment, when other work would not interfere with them anymore.
The stays are chain and they were simulated in the same way as the chains for the rails etc. Luckily the lithograph represents these chain-stays by dotted lines, so that the points where they have to be made fast are known. Miniature eyebolts were fashioned from wire and glued into holes drilled for the purpose. They also received laser-cut washers of 0.5 mm diameter. The stays are set taught with lanyards made from thread as used in the old days for mending ladies’ ‘nylons’.
Not sure, whether I showed pictures before of how I am making fake chains using twisted wire. The material is oxidised Konstantan (a Cu/Ni alloy), sofar the best material I found for the purpose due to its tensile strength.
Depending on the envisaged use, one could also pull the ‘chain’ through the fingers with some graphite to make the links more visible. 
Micro-marlin-spike - In between I also spent some time on the lathe and made marlin-spike for the upcoming ropework. So far, I just used a hypodermic needle, but found holding it between the fingers not very satisfactory. I knew that hollow marlinspikes are being used for work with wire-rigging, but somehow it had not occurred to me to use it in the model-realm. Thanks to ‘archjofo’ who described his marlin-spike made from a sharpened piece of brass tube.
As I have quite a collection of hypodermic needles in my scrap-box, I selected a suitable size. The nice (real) ebony handle also has been in the scrap-box for a long time, waiting for a suitable use. I gather it came from my father’s estate, who had trained as a medical doctor during the war. At that time a lot of better-quality (biological, medical, dissecting) instruments that did not need to be sterile were made with ebony or ivory handles – looking rather elegant today.
The handle was almost ready to use and needed just a bit of turning down, where the ferrule will be fitted. The ferrule was turned from 6 mm brass rod and drilled out for the handle. A deep hole for the 0.8 mm hypodermic needle was drilled. The ferrule is a tight fit on the handle, but was secured with a drop of PVA glue, while the needle was just driven into the slightly undersized bore.
Hypodermic needles, of course, are meant to cut through the skin and in consequence have very sharp edges – not so good, when working with fine threads. The cutting edges, hence, were dulled with an Arkansas-stone.
Using such marlin-spike, it is possible to make fake eye-splices with ropes as thin as 0.18 mm …



February 2024 - Installing the ship’s boats - This detail was the most dreaded of all, due to the flimsy character of the parts. The davits had been produced a long time ago, as were the blocks for the hoisting tackle, and, of course the four boats.
There are no pictures, except the very first photograph of SMS WESPE that indicate the arrangements for the boats hanging outboard on the davits. While it seems to have been a quite common arrangement on smaller warships of the time, it was already noted in reports by captains of Prussian gunboats ten years earlier, boats in such a position are prone to be carried away by seas of even moderate height. So, quite early on barrings and boat skids had been installed on the WESPE-class boat and the davits lengthened to lift up the boats. For this final arrangement, various images are available.
Somehow, the boats must have been prevented from swinging in their hoisting gear. A typical arrangement would have been a spar lashed across the davits and the boats pulled against them with cross-wise boat ties. In the absence of other pictorial evidence, this is what I opted for. There were, however, still some detail questions open: were those ties strips of heavy canvas or braided rope-work and did the spars have bolsters around them to prevent damage to the boats? For the latter questions there are examples of both option on photographs and (contemporary) models.
I recently visited again the Maritime Museum in Stockholm, which reminded me of a possible solution on a model of the same period. The boat-ties seem to have been heavy canvas and had triangular rings at their ends. They are attached to an eye at the top of the davit, run around the boat, then around the opposite davit, and are hauled taught with a tackle of blocks hooked in between them. No bolsters on the spars.
I decided to leave out the tackle and just use a lashing between the rings to tighten the ties. The lashing will be difficult enough to access behind the boats.
The triangular rings were fashioned from 0.15 mm tinned copper-wire wound around the tang of a triangular file with 1 mm sides. The windings were cut open with a scalpel. The ties themselves are narrow strips of a special kind of material: a kind of very fine silk-paper tape with a backing of a thermos-setting acrylic glue. This material is used in book repair for instance. Brand and other details can be seen on the photograph. The 1 mm strips were cut with a new no. 11 scalpel blade and folded in two. The material is slightly tacky which is helpful when aligning the halves and inserting the rings. The glue was set with the help of my hot-air soldering gun set to 110°C as per instructions. The halves were pushed together using a tool as used in the old days to rub down transfer lettering. The ties were painted in Vallejo ‘hemp’.
It took some tries to work out a workable sequence for installing the davits, spar, boat-ties and boat-tackles, considering also the difficulty of access. Eventually the ties were fastened to the davits and the tackles hooked into the latter with the loose end already belayed to the clamp on the back of the davits.
The davits then were inserted into their sockets and fixed with a drop of white glue. Next the spar is lashed to the davits. Then the ties were arranged in preparation of the boats and the lashing is reeved.
The davits are now ready to receive the boat, which is slipped in and the tackles hooked into the respective rings on the boat. The ties are now pulled tight, so that boat rests against the spar.
Overall, the installation of the first boat went reasonably well. However, it is hanging a few millimetres too low. The boat’s keel should have been level with the bulwark handrail. Somehow, I didn’t manage to make the close-hauled tackled as short as it should have been. Also, the hooks on the blocks are a tad too long. Not 100% satisfactory, but I am not going back two steps to remake the blocks and tackles and all. Let’s assume the crew hasn’t done such a good job in stowing the boats and the officers haven’t noticed it yet …
The installation was moved further to completion by tidying up the loose ends and producing the bunts for runners of the boat tackles. The runners are about five times the distance between the head of the davits and the waterline long, plus some extra for handling. However, as the rope is slightly overscale the runners were cut a bit on the short side in order to make the bunts not too bulky. The actual runners were cut above the cleats and the bunts were formed over two clothes pins driven into a piece of wood and have a loop pulled out with which they can be hung over their respective cleat. Note that the runners for the ‘ready’ boat are not arranged in bunts but in coils, ready to be thrown loose so as to allow the boat being lowered quickly e.g. in a case of man-over-board.
Again, working from the inside out, the next items to go on were the stays for the davits. Luckily, the stays are drawn in the lithographs so that their points of fixation are known. I had to deviate a bit from those drawings, as they pertain to the longer, turning davits for the boats stored on rack, which belong to a slightly later period. The stays are supposed to keep the davits aligned, rather than helping to swing them around.
It was a bit of a trial-and-error procedure, before I came up with a protocol for making miniature fake chains of exactly the right length and with loops at both ends. The chains would have been shackled into ring-bolts at the head of the davit. No way of making shackles in this scale, so I just tied the fake chains to ring-bolts with fly-tying thread.


March 2024 - Toolkit for the gun - The operation of the gun required quite a few different tools for handling the projectiles and the powder-bags, as well as for cleaning and maintenance.
There were two different wipers, one for cleaning with soap-water and the other one for greasing the bore after use. This still was the era of black powder, which means that the bore had to be cleaned frequently.
Loading required a rammer to push the projectile and the powder-bags into the chamber of the gun. The rammer also served to unload the gun by pushing it through the muzzle. It had a depression in the front so that one would not push onto the fuse.
The large-scale instruction model in the (former) Orlogmuseet in Copenhagen came with many of the necessary tools. Their look tallies with the description of a textbook on the Imperial German naval artillery (Galster, 1885). The length of the shaft was given as the length of the barrel plus some extra for one or two men to be able to hold onto it, while it was fully inserted. If there were not enough space for such long implements, there were also versions in two parts with a brass connecting sleeve.
The body of the implements was turned from some 2 mm steel rod, as I had this to hand. The shaft is a 0.8 mm piano wire. The latter appears to be quite hefty, but seems to tally with the photographs. As the gun will be shown undergoing a drill, the wipers are not needed and will be shown in their protective canvas covers, stored in the racks on deck-house as per photograph below. The canvas covers were simulated with some Vallejo liquid putty. According to Galster (1885) the covers were supposed to be painted black, but the above photograph indicates that they were white, which is what I opted for. The rammer body has two copper-bands to protect it, which were simulated with paint. The limited space in barbette seems to prevent the use of a full-length rammer, so I gave the end of the shaft a connecting sleeve simulated with paint.
Tampion - The photograph of the instruction model in Copenhagen also shows the expanding tampion that was constructed from two brass discs with some fibre material in between that was contained by a leather sleeve. An internal screw operated by a T-shaped handle squeezed the fibres between the disc and made them expand to lock into the muzzle. It was turned from a length of brass rod. The handle was first turned as a thin disk and then the excess material was milled away to leave the T-shaped handle standing. The greased leather sleeve has been simulated by some brown paint.
Gun-sights - Gun-aiming laying didn’t significantly progress until towards the end of the 19th century. Just very basic front sights were used that sat on the trunnions, while the rear sights were adjustable in height for different distances and laterally for lead-angles. The rear sights used on the 30,5 cm gun a clearly visible on photograph below. Galster (1885) gives a detailed description. Basically, it is brass-tube of about 4 cm diameter that is set into a whole drilled vertically through the rear of the gun. In this tube runs a graduated brass-rod for setting the elevation as a function of the type of projectile used and the size of the powder charge. Firing tables were provided with the gun. On top of the rod is a cross-piece that runs in a dovetail-slot and allows to pre-set the lead-angle. The lead-angle was calculated inter alia on the basis of the estimated relative speed of the target and its distance. There was the usual V-notch on the top of cross-piece.
It took several tries to produce these tiny pieces. In the end their dimensions are slightly over-scale due to the limitations of machining brass. Starting from 0.8 mm brass-nails, which are slightly harder than the usual brass wire due to the forging process, a 1.5 mm length of 0.2 mm diameter was step-turned over short lengths successively. Then a 0.2 mm long length was turned down to 0.7 mm diameter and this ‘rod’ with a disc at the end parted off. Luckily, I have a 0.2 mm collet for the lathe, so that the part could be inverted and the parted-off end cleaned up. With a pair of cutting-tweezers the disc was clipped down to the size of the cross-piece. Burrs were removed with a fine file.
This part fits into a 2 mm long section of 0.3 mm OD brass-tube (from Albion metals).
When I made the gun-barrel in about 2008, I did not have really the technology to safely drill to any depths the 0.3 mm holes for the sights, I was glad to be able to mill the flats with a broken drill that I had ground flat at the end. With my micro-milling machine and the dividing head this would not be a real issue anymore. Unfortunately, I forgot to do that before painting the barrel. Therefore, the sights had to be simply cemented onto the flats with a tiny drop of shellac.
Before doing that I also added the protective frames over the sights using some 0.007 mm diameter silver-wire.
Stern anchor-crane - There are drawings as well as the photograph below that show the anchor-crane in some detail. Basically, the dimensions are the same as that of the boat-davits, so that I was able to use a spare one that was left over. The ball at the end was drilled for the ring into which during service the anchor-tackle would be hooked. When not in service, the davit was steadied with two chain-stays.



April 2024 - The Imperial German Navy Ensign - This ensign was first conceived for the navy of the North-German Alliance (Norddeutscher Bund) in 1867, bringing together the colours of the dominant powers, namely Prussia (black-white) and the Hanseatic City States, Hamburg, Bremen und Lübeck (red-white). The design obviously was inspired by the British White Ensign and makes reference to various medieval symbols, such as the cross of the Teutonic Order, and the more recent Iron Cross from the Napoleonic War. After the proclamation of the 2nd Empire on 18 January 1871, this ensign became also the ensign of the Imperial German Navy and remained it until the end of the Empire in 1919. There have been, however, some smaller modifications over the years, thus the eagle was somewhat modified and in 1902 the arms of the cross were made heavier in order to avoid confusion at distance with the White Ensign of the Royal Navy.
Overall, it is rather complex design to reproduce purely manually. First, I had to find a correct image for the ensign, as it looked in about 1878 and was lucky, as the Internet furnished a digital image of sufficient size and resolution. The idea was to print it on both sides of very thin paper (the kind that was used in the old days for carbon copies on type-writer, of which I kept a small supply). Such paper, however, does not feed well through the laser-printer and aligning for double-sided printing is practically impossible. Therefore, I resorted to so-called transfer-sheets. These are a kind of waxed paper that is used to transfer laser-printouts to T-shirts, mugs and such things. Laser-printer toner is basically carbon-black mixed with some plastics powder. It can be remelted with a heat-source, such as an ironing-iron and thus transferred to another substrate. I also experimented with overhead-sheets, but the results were not as good.
In a first step, the red stripe in the flag was eliminated from the image in Photoshop, as it would print grey otherwise. The ensign was then scaled to the right size on the basis of some trial-and-error, as the laser-printer prints a few percent undersize. I then added reference marks some distance from the image and duplicated this for mirroring. Several of these left-right-pairs were arranged on an A4-sheet and then printed onto the transfer-sheet using the highest quality print setting.
Using the best matching pair, I made a small pouch (as you would do for the masks, when producing photo-etched parts), aligning the images against each other for a perfect match on an illuminated board (they can be bought for a few €/£/US$ on ebay et al. and are powered through a USB-charger). An oversized strip of the thin paper was slipped in between and everything taped down onto a piece of thick cardboard.
I pressed down an ironing-iron set to the lowest temperature onto the package, which made the toner firmly stick to the paper and no residues left on the transfer-paper. And voilà, a double-sided printed flag with a very detailed eagle etc.
In the next step the missing red stripe was added using red acrylic paint. I also added colour to the legs and beak of the Imperial Eagle, to the Imperial Insignia and the crown using yellow-ochre acrylic paint. If one has a colour laser-printer this step would not be necessary.
The flag was cut out exactly to size, except for the rear, where it was left a tad longer to provide for a hollow ‘seam’ into which a thread with two loops at the end was laid The seam was glued down with some diluted white glue. This area also needed a bit of touch-up afterwards with black acrylic paint.
Draping the flag is best done or least pre-arranged on the flag-staff. The paper was slightly wetted and the flag laid into diagonal folds in alternate directions. Toothpicks ensured that they became folds and not creases, which would be unnatural. Such a large ensign (2.9 m x 4.96 m) would fully unfold only in a moderate breeze and not in the light wind assumed in the scenic setting. So it flaps lazily in the wind, which I tried to reproduce.
To the thus prepared ensign the halliard was attached as a loop. This loop was taken over the top of the flag-staff and a tiny laser-cut paper disc glued on as truck. There was no way to cross-drill the staff for the halliard. The halliard was belayed on the clamp. With this the assembly is ready for installation on the boat. But I will not hoist the ensign before the crew is on board.

Ensign of 1867/1871
Print layout
Toner transfer paper
Transfer completed
Before adding colours
Completed ensign
Draping the ensign
Attached to the flag-staff


Early July 2024 - The Crew boards S.M.S. WESPE - With all the crew members being painted, they were place at their foreseen duty stations. They were attached with tiny drops of Vallejo acrylic matt varnish. The pictures show their disposition.

Disposition of the crew on board of S.M.S. WESPE


Mid July 2024 - Final touch-ups - In case I had to remove the model from its base for whatever reason, it had only be screwed down, but the slight gap between the hull and modelled sea had not been filled with acrylic gel yet. Now with the model almost completed, this was done. I also gave it a very light weathering at certain places. For instance, the top of the smoke stack was lightly dusted with black pastel. White and grey pastel indicated the areas where the ash would have dropped out of the ash-chutes into the sea. Some grey pastel was also applied to certain parts of the hull to break somewhat the uniform black and enhance the visibility of surface structures.

Raising the Ensign - Now, being ready to go to sea, the ensign was raised, meaning the flagstaff was installed. This being extremely delicate, it was left as very last step.
With this the model is in principle finished after a journey of nearly 18 years. I just checked: the first photographs were taken on 1 October 2006. There have been considerable interruptions, such as the move from the Netherlands to Paris. I also built the model of the Zuiderzee-botter in between and spent considerable time on constructing workshop tools and machinery.
However, before screwing down the glass-case the above photographs also serve to check the model for any imperfections that can still be addressed at this point. Paint may have to be touched up etc. This is more visible on 2D images, than on the real thing. Once this is done, some ‘glamour shots’ will be taken before the glass-case makes this more difficult.
There are certainly things that I wish had turned out better. This includes the rigging, which is taught or following catena-curves as I had planned. Making things to scale-size also makes them at the chosen scale rather flimsy with limitations to adjustment possibilities. This is even more the case with ‘modern’ ships in metal and with metal parts, where parts have to be thin and small, compared to those on wooden ships of old. Sometimes, these problems also arose due to a lack of foresight on my side.


Completing the model of S.M.S. WESPE

Pictures of the complete model can be found on the main S.M.S. WESPE page.

Crew

The WESPE-Class had a complement of around 80 crew, of which three where officers. This seems to be quite a number for a ship of only 46 m length. Unfortunately, there is no information on the different duties and the distribution of ratings. There are some crew photographs from the 1900 to 1910 era, but they manly show officers and petty-officers and in addition, they come from the short periods during which the boats were commissioned for exercises in groups and may show crew from a whole flotilla.
The intention was to show some gun-drill on the boat, as in the historical photograph above. There are about ten ratings visible and a couple more or so may be hidden behind the gun. There would be probably also a petty-officer in charge. On the bridge there would be two men at the helm and a couple of officers. In total, I estimated that about 15 figures would be needed to present a reasonable picture of activity.
Below the gun there would some ten men or more manning the cranks with which the gun is trained. In the boiler-room, some further ten crew would be working hard on stoking the fires, trimming coal etc. The same number of crew, would be on the off-watch. The machine would be tended by perhaps three to four engineers and petty officers. I am sure there are other duties, such as maintenance, signalling, plus a certain number on off-watches, but there is no information available on how these ships were ‘run’.

Uniforms
The 1870s were a time of transition as far as the naval uniforms are concerned. In the early years of the Empire much of the features of the uniforms of the Prussian navy were retained. To a certain degree the uniforms also followed the general fashion in terms of the height of the waste-line, the width of trousers and blouses, the shape of the caps etc. By the early 1880s the uniforms of all ranks were quite consolidated and were changed only in details until the early years of WW1. There is abundant information on these later years and on officers’ and petty-officers’ uniforms, but information on ratings in the early years is quite scarce in the primary and secondary literature. In particular, information on working kits is not very detailed. Normally, a certain ‘kit’ would be ordered for certain duties, but photographs show a certain variety of items worn and how they were worn, for instance some men would have the sleeves rolled up, while others would not.
Photography was still rather new then and it was difficult to take ‘action’-pictures with the cumbersome equipment of the day. When a sailor had his likeness taken in a professional photographic studio, then it was in his Sunday-best parade-uniform and not in workaday fatigues. The same applies actually to all ranks. There are fortunately a couple of photo-albums from training-cruises in the mid-1870s (e.g. of the cruise of SMS HERTHA to the Far East in 1874-1877) which on purpose show the real-life of the crew, as much as was possible with the equipment of the day, thinking of heavy tripods and large-format cameras with wet glass-plates. These photographs are an important source of information on how the uniforms really looked like and how they were worn for different duties, although virtually all situations were ‘posed’.

Apart from photographs, there are a number of printed works can be considered as primary sources, as they were published at the time, and just two or three secondary publications, which mostly reproduce the plates from earlier publications:
  • ANONYM (1872): Uniformierungs-Liste der Königlich Preußischen Armee und der Kaiserlich Deutschen Marine. Zweite bis zu Gegenwart fortgeführte Auflage.-  114 p., Berlin (E.S. Mittler & Sohn).
  • ANONYM (1887): Die Uniformen der Deutschen Marine in detaillierten Beschreibungen und Farbendarstellungen (Reprint 2007, Melchior Verlag, Wolfenbüttel).- 61 p., 18 Taf., Leipzig (Verlag von Moritz Ruhl).
  • BURGER, L. (1864): Uniformierung der preußischen Marine, Originalzeichnungen.- Über Land und Meer, Bd. 12, Jg. 6, Nr. 31: 487 u. 489.
  • HENCKEL, C. (1901): Atlas des Deutschen Reichsheeres und der Kaiserlichen Marine einschließlich kaiserlicher Schutztruppen in Afrika in ihrer Uniformierung und Einteilung.- 32 pl., Dresden (Militär-Kunst-Verlag MARS).
  • LINTZ, G., RAECKE, K.-H. (1978): Die königlich preußische Marine.- Z. für Heereskunde, 275: 20-21.
  • MARINEAMT [Ed.] (1984?): Die Geschichte der Matrosenuniform.- 79 p., Wilhelmshaven (Marineunterstützungskommando).
  • NOESKE, R.,  STEFANSKI, C.P. (2011): Die deutschen Marinen 1818–1918. Organisation, Uniformierung, Bewaffung und Ausrüstung.- 2 vols.: 1336 p., 304 pl., Wien (Verlag Militaria).
  • RUHL, M. [Ed.] (1887): Uniformen der deutschen Marine in detaillirten Beschreibungen und Farbendarstellungen, nebst Mittheilungen über Organisation, Stärke etc., sowie einer Liste sämtlicher Kriegsfahrzeuge und den genauen Abbildungen aller Standarten und Flaggen.- 98 p., 26 pl., Wolfenbüttel (Reprint 2007 by Melchior Historischer Verlag).
  • RUHL, M. (18936): Die Deutsche Marine und die Deutschen Schutztruppen für Ostafrika in ihrer neuesten Uniformierung.- 78 p., 20 pl., (Faksimile Fines Mundi).
  • RUHL, M. (1892): Uniformen der deutschen Marine.- Starnberg  (reprint 1989).
  • SCHLAWE, K. (1900): Die deutsche Marine in ihrer gegenwärtigen Uniformierung.- 98 p., (M. Ruhl).
  • WALDORF-ASTORIA [Hrsg.] (193?): Uniformen der Marine und Schutztruppen.- 14 p., 8 pl., München (Waldorf-Astoria Zigarettenfabrik).
  • ZIENERT, J. (1970): Unsere Marine-Uniform – Ihre geschichtliche Entstehung seit den ersten Anfängen und ihre zeitgemäße Weiterentwicklung von 1816 bis 1970.- 451 p., Hamburg (Helmut Gerhard Schulz Verlag).
Gun drill c. 1900
(Lavverenz)
Officers of
SMS HERTHA 1874-1877
Helmsmen of
SMS HERTHA 1874-1877
Gund drill on
SMS HERTHA 1874-1877
Gund drill on
SMS HERTHA 1874-1877
Crew-members at various stages of modelling Painted crew-members More painted crew-members


May 2024 - Preparing the Figures - Starting point is a set of unpainted figures by Preiser in 1/160 (N-scale). Compared to HO-scale the selection is much smaller and the sets of unpainted figures are not so easy to find. Individual figures were selected on the basis of their poses, but very few had vaguely useful dresses. Some of the railway officials formed a suitable a basis for the officers and petty-officers.
Fortunately, the figures are small, some 10 to 11 mm in height, so only a rather summary representation of their attire needs to/can be achieved.
All figures required quite a bit of carving and sculpting with ‘Green Stuff’. The single-breasted jackets of the railway staff had to be converted into the double-breasted, longer frock-coats of the time. The peak-caps of 1960s officials (many of the figures were originally modelled by Preiser in the early 1960s) looked quite different from those worn by naval officers in the 1870s – German (naval) peak-caps underwent a significant change in appearance between the 1870s and the early post-WWII years.
Naval ratings required more substantial carving: jackets had to be cut away and blouses tucked into high-waist trousers had to be carved. Safety helmets were cut away and the characteristic sailor’s cap sculpted with ‘Green Stuff’. Shovels etc. were cut away and hands drilled for more appropriate implements. The sailors also got their traditional large collar.

June 2024 - Painting the Figures - In order to better see how the sculpting turned out and any imperfections, the figures were given a spray-coat of matt white paint (Vallejo Model Air). This also served as a primer that made hand-painting easier. I like the consistency of Vallejo Model Air paints also for application by brush, but several coats may be needed for certain colours. Unfortunately, only at a relatively late painting stage some molding flash was noticed that could not be removed anymore. Also, it turned out, that some faces were actually not molded very well, which made it difficult to paint them.
Painting such small figures requires a bit of a strategy. However, regardless of scale, I usually begin with the face and any other exposed skin. The reason is that, apart from white, most other clothing colours tend to be darker and have a better coverage and perhaps more importantly, clothing covers the skin, so in order to get precise edges between the clothing and the skin, it is more natural to paint towards the skin, rather than trying to approach the clothing with the skin colour.
At this scale no attempt is made to paint eyes and such details, but rather to paint the shadows under the eyebrows and in other parts of the face. I find the way of how Canaletto treats the staffage in his paintings a useful reference. It is fascinating, how he can bring the ‘people’ to life with just a few brushstrokes and blobs of paint.
It may be counterintuitive, but it is sometimes better to begin with painting details and then work with the main colour towards them. Or to use an iterative procedure: painting say the main colour of the clothing, then adding detail, followed by touching up with the main colour, where the brush had gone astray. Narrow lines, such as embroidery, are difficult to achieve, but too wide lines can be reduced in width by painting the main colour against them. The painting proceeded in several iterations and I have not taken pictures of the various steps.
The Vallejo Model Air paints have a slight satin sheen, which is good for many applications, but in order represent cloth better, the figure were given at the end a light spray coat with matt varnish.

June 2024 - More Crew Figures - While dispositioning the crew according to the envisages story-board - the crew undergoes some gun drill under the supervision of a petty officer, with the captain (Kapitänleutnant, but I didn’t manage to paint the two embroidered stripes on the sleeves) looks on, the first officer (Leutnant zur See, one stripe on the sleeves) takes notes, and two men man the helm - I noticed a certain emptiness and lack of activity in the other parts of the boat. So, I sifted through the Preiser-sprues in search for some additional suitable figures. Thus, more mid 20th century German railway staff joined the 19th century Imperial Navy. There will be two stokers taking a break from their arduous work, a rating on signalling duty walking back towards the mast, and a petty officer on the after deck going about his duty.
As before, jackets had to be trimmed down and breast pockets scraped off in order to represent blouses and high-waist trousers. The single-breasted railway-jacket was converted into the double-breasted one of the navy, caps or hats altered.
The painting proceeded as before, but I noted that the practices from the other figures paid off. The stokers wear the white working blouse and trousers, which seems a bit strange in a boiler-room environment full of coal-dust, soot, and sweat, but I suppose the undyed cotton stands up better to serious washing than any coloured cloth. After painting, these figures were dusted with grey pastel.
 




Contact: webmaster at maritima-et-mechanika dot eu


Besucherzaehler.co


Home Maritime Resources
Ship Models Machine Tools Other Stuff Site history Top of Page