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  1. I don't think 'stupid' is quite the right word here. I refer my honourable friend to events in the US state of Texas over the last few weeks.
  2. ..and that's not to mention all the trees that go to power the Drax wood burning power stations.
  3. Ragwort is dangerous, not particularly because it is poisonous, which it is, but because it tend to grow on poor pastures, so cattle eat it because there's not enough good stuff around. The farmer who complained did put me in mind of the Grundys from the Archers.
  4. I think that the SECR van has proved the is a market for relatively small batches of RTR pre-grouping wagons. Now Rails Has to prove that this one isn't a fluke and go on to produce a range of similar vehicles from other companies. Lets just see what the market is for say a GNSR or G&SWR van or anything from a S Wales railway.
  5. It was a guess, based on the fact that the pre-grouping companies had no was of tracking wagons. So maintenance could not have been preemptive and must have been on the basis of repairing known defects. John Hopper gives some figures for the NBR. The total number of wagons in a 1920 census was 58404*. the approximate number of wagons having heavy repairs in 1919 was 5824 with 67300 having light repairs. Which suggests, in the years just after WW1, a wagon could expect a heavy repair on average every 10 years and a light repair every ten and a half months. *There were
  6. The usual repair cycle is often stated as 7-10 years, but I suppose that would depend how often a particular wagon had been left out in the open somewhere exposed, like say Mallaig.
  7. Given the amount of product that Lego makes, printers just won't be able to cope. Still, once the patents run out, something like this is likely to be useful for small volume manufacturers, such as those making railway models.
  8. Can you see the plank edges in the photo? ..and if you can won't they be best represented by a thin dark wash when weathering? The eye sees things differently to a photograph. There a was a lecturer at Bradford Art College while I was there, who used to design carpets that appeared to have 8 or 10 colours but were made from only 4 coloured yarns. Placing one colour line close to a second colour gave the illusion of a third colour. I have used this when I had some GNR coaches painted. The GNR lining was a 1/4" primrose yellow line bordered on both
  9. You've miss the point here. It is the tolerances of the printer/ resin combinations that are important. My printer over-prints ~0.1mm on all xz and yz surfaces, so if I want a 3mm peg to go into a 3mm hole I have to print the peg at 2.8mm ø and the hole at 3.2mm. If your printer over-prints at a different rate the peg either won't go in the hole or the fit will be slack. If you decide to print the hole at an angle and the peg at a different angle things get a lot more uncertain. There is no easy way for people without CAD skills to adjust small parts of a STL file to compensate for these probl
  10. I think you are going to need an awful lot of testing to get this to work. The problem is less to do with the sales side and more to do with the range of possible materials and printers that are likely to be used by your customers. Lego bricks 'work' because they are moulded in ABS to tight tolerances in such a way that the bricks 'grab' each other. I seem to remember some Chinese Lego copies that were moulded in, probably, polystyrene which didn't stick to gather well. The problem with 3D printing is that there are many different printers with different characteristi
  11. Thanks, but it is the other, driver's, side I'm looking for.
  12. Looking at the photos in Essery, I don't think that that os a door stop. There is only one per side and they seem to be made out of very thin metal.
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