Jump to content

wefalck

Members
  • Posts

    5,553
  • Joined

  • Last visited

Everything posted by wefalck

  1. Well, not really. It is just a jerk forward. I accumulated so many parts over the years, that in some cases I forgot what exactly they were meant for. So I decided to empty the many little boxes and put things together, at least to a stage, where they do not obstruct further work. And in some case parts have to be made fit to other parts in situ, which can be done only when the other part is permanently fixed. So, I am still far away from completion. I still have to make the boats and then comes the most dreaded part of all: rigging the two-chain-rail around the deck-house and the forecastle. That gives plenty of opportunity to screw things up. Also installing the boat-davits with the boats will be a challenge - I definitely will have to work from the middel of the ship to the outside to make sure I do not damage things.
  2. Thanks, David ! I think the manufacturer (formerly Röhm GmbH, then Evonik, but I think they have changed hands again) does give recommendations, I think for suitable solvent. Maybe Acetone works, I have to check. They also produce about three dozen similar formulations of 'liquid' Plexiglas with different viscosities and different curing times. The one I have here is a sort of allround one, good for constructing with Plexiglas, but as soon as it is hit by a quantum of light is gels - perhaps because I had the tube for over 20 years albeit it spent most of its time in the fridge. Another issue is that during my process the outside of the brass tubes was smeared, which is something I cannot have. They have slide smoothly into the boreholes. I think I will turn down some 1 mm Plexiglas-rod to 0.8 mm, which is the ID of the tubes, to a sort of press-fit. This was my original idea, but I thought the route via the liquid Plexiglas would be faster. I like Plexiglas because it can be polished flat to a glass-like finish.
  3. Thanks, gentlemen. These antique small machines are actually a secondary hobby, which justified kind of the expenses ... ********************** Fitting out the barbette As small update: I have further kitted out the barbette 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. Barbette with shell-racks, ladders and hatchways installed 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 Plexiglas glue is too viscous to penetrate into the 0.8 mm diameter opening of the brass tubes. Have to figure out a different way … To be continued ....
  4. Love those cardboard-boxes, looking very convincing. It this sort of thing that enlivens such dioramas. I like to take pictures of old workshops and the likes in museums, as still-life in themselves, but also as inspiration for such models:
  5. NiCr-wire is used in heating elements e.g. for toasters, so it is available in a wide variety of diameters, but it is very tough to cut. 0.001" are actually 0.0254 mm - still very thin. McCaffery uses the twisted NiCr-wire for all his rigging, regardless, whether it was hemp or iron/steel. He also seems to paint all the rigging black, regardless, whether it is running or standing rigging. Personally, I don't quite like this idea, as suitable beige paints are available.
  6. "Figure 153: Bottles (probably containing Eau de Cologne). They will be hanging on the wall above the sink." From the distance they look like the dispensing bottles for liquid soap. They were made either from glass (so that you could see the level of filling) or porcelaine. At the bottom there was a sprung valve (the sping is in the cylindrical part sticking out from the top). You pushed the knob at top to let soap out. In another variant you pushed the valve up with your hand underneath - the always leaked. Until the 1970s they were ubiquitous in railways, public toilets, hotels etc., when they were replaced by plastic bottles. Nice progress on little details ...
  7. McCaffery was/is my bible for miniature ships, but his method of block-making is really only applicable to his rigid twisted metal-wire rigging. He basically punches out oval paper discs with custom-made hollow punches and then sticks these on both sides of the crossing between wires or he builds up tackles by glueing strands of twisted wire to discs. One could think of adapting the method by substituting thread for wire. It would probably work for simple tackles with single-blocks. Not sure how one would do with double blocks. I have tried to go (partially) down that route, but found it difficult to align the discs to each other with sufficient precision. Rather than punching the block cheeks, I cut them with my laser-cutter. So far, I managed to produce blocks down to 1.5 mm with miniaturised traditional methods, but will have to face making 1 mm blocks in the near future.
  8. The rack was cut (a looong time ago) on my hand-shaper with a dividing head clamped to it: I ground a special cutting tool for this:
  9. Thanks, gentlemen, for your appreciation ! ************************************* Kitting out the deck 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. 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. Deck for the barbette with pivot and races for the gun installed 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 Rear deck with sky-lights and bollards installed To be continued ....
  10. ... at least they put wedges behind the rear wheel, to keep the car from rolling off.
  11. Personally, I tend to leave painting to the very end in order to not damage the paintwork during the building process. Other people paint as they go along, which perhaps also has motivational aspects, as you see something that looks like the finished model for a long time. In my case, the model may not look like much for a long time and then suddenly it emerges almost complete. It also depends on the accessibility of areas to be painted and the possibility to mask-off areas to prevent paint (or a different colour) from getting to them.
  12. Sailing ship often spent weeks or months in port, waiting for cargo or the right winds for their trips. After arriving and in suitable weather, the sails may be 'shaken out', hanging limp from the yards etc., which are not raised - in order to dry. According to old photographs, this was a rather common sight. And this is most difficult way of showing sails, as in this state the thickness of the material becomes really perceptible through the creases and pleats they form - most materials, even silkspan, are too thick to represent this convincingly.
  13. I love those dioramas ! It is true, there is never a enough clutter to make - just look around your own workshop and compare One thing I was wondering about (even in those less safety-preoccupied times than today): shouldn't there be any stops at the end of the rails for the car to prevent it from overrunning ? Also some rails left and right might be helpful to keep it on track ...
  14. My understanding of the term 'single' has been that no purchase, i.e. mechanical advantage was provided by the block(s) involved, only a change of direction. In this case only a block at the mast doubling would be provided. I realise that this does not explain the extra length of the rope specification ...
  15. The bolt-rope diameter is proportionate to the size of the sail and the weight of the cloth used to make the sail. Check out the above references and work it out for your model. There is no off-the-shelf recipe.
  16. You could check out CONSOLIN, B. (1863): Methode pratique de la coupe des voiles des navires et embarcations. Suivi des tables graphiques facilitant des operations diverses de la coupe avec ou sans calcul, ouvrage offrant aux capitaines des reseignements utiles à la mer.- 194 p., Paris (Mallet-Bachelier). MERLIN, J. (1865): Traité pratique de voilure ou exposé de méthodes simples et faciles pour calculer et couper toutes espèces de voiles.- 226 p., 7 pl., Paris (Arthus Bertrand). They are both available as eBooks and may have information on the proportionate size of bolt-ropes. To my knowledge, jibs would have bolt-ropes on all sides. Most of the sails of ocean-going ships from the 18th century onwards would have bolt-ropes all around, as they help to distribute the strain of the various attachment points.
  17. The unused anchor-cable my be just lead underneath the spill and lashed at a convenient point. The diameter of the cable would beed to be calculated from the weight of the anchor. There are contemporary textbook sources for this, but I don't have them at the tip of my fingers. Perhaps someone else can chip in here.
  18. BTW, the anchor cable is laid around the spill with about three turns only and it would need to come from above to clear the forecastle deck. Also, only one cable is taken around the spill at any one time ...
  19. Try molybdenum and you will love piano wire However, the hard temper can be drawn out of piano wire by cautiously heating it up with a torch. The different oxidation colours will give you an indication of the hardness: Try on samples until you get the hardness/springiness you want and then always heat to that temperature.
  20. Indeed, their naval books I have seen are colourful, but being tertiary references, of rather limited value. Just looked up MAGENTA in 'Conway's All the World's Fighting Ships 1860-1905' (secondary reference) and there MAGENTA is down 16 55 pounder smooth bores, 34 6.4 in (= 162 mm) breech-loaders M. 1860, and 2 8.8 in (= 224 mm) rifled muzzle-loaders. This sounds quite credible and I will have a look, what I can find about these guns in my primary references.
  21. With all the detailed undercarriage work, you may consider displaying the coach on a mirror, as it is sometimes done in museums ...
  22. This kind of holder to fit into the toolpost can be bought at reasonable prices: For light knurling in brass a simple holder to feed straight into the part may be sufficient. Be aware, that knurling forms sort of triangular ridges - gear teeth look somewhat different, with sort of vertical flanges and a space at the bottom between the teeth.
×
×
  • Create New...