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SHMD

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About SHMD

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  1. Very nice - I might just have to have one of these. Will you be doing one in BR blue Large Logo livery? (Only joking.) Kev.
  2. ..but no way of calculating brake force. It's also an unsecured load so I suspect it wasn't going very far. Kev.
  3. Hi Elmeon, It's a small world, I was at malpensa airport this morning, flying back to the UK after 9 days staying on the shores of Lago Maggiore. (Working at the JRC) Beautiful area, wonderful. Oh, and welcome to RMweb! Kev.
  4. Hi Jonathon, Your equipment can deal with large areas / sheets of material, signal arms for example. I think products that could utilise this size would find a market as smaller kits are already being produced by others with smaller machines. I can think of two products that may be worth investigating / developing. 1/ Large long retaining walls, and 2/ Station Platforms. These are already catered for, of course, so these will have to offer something that the others don't - flexibility. Flexibility in both form and function. The retaining walls, in a range of heights from 20' to 60', would be either straight in length but being flexible, could be concave in height. If the modeller wanted a long curved retaining wall then he would have to have straight walls in height but could then curve the wall to fit his needs. Vertical reinforcement strips could then be place equa-distant along the wall and coping stones atop to finish it off. For the platforms, much longer lengths would be available to the modeller but with no joins. Also, with some development, flexible platforms would make for very gently curved stations. Very acute "V"s would need to be cut into the tops of these and then filled in / hidden but the modeller. The platform edging would pose no problems for either your cutter or the modeller placing / curving them into place. Kev.
  5. Talk about the Hare and the Tortoise. That photo beats everything on this thread whilst summing the thread up nicely! Kev.
  6. I have no more "problems" with spiders anymore, I moved from Australia to England! Kev.
  7. Machining two slots that just fits the rails in exactly and then super-gluing them in place is easier than soldering. I'm ok at soldering (being an Electronics Engineer) but glue is just easier here. I can trim the rail lengths before or after fitting, the copper clad PCB is that strong! Kev.
  8. This first prototype isn't intended to be motorised - or even powered. For the second prototype, I will machine it in three and insert rails instead of trying to use the copper on the PCB. The finished product will be powered and motorised as I want to run a Peckett and a 48DS over it. I also want it to be DC. DCC would have been a lot simpler with just continuous rings for supplying the TurnTable's rails and a Frog Juicer for the 24' crossing next to the Turn Table. For DC, the hard part has been done - the concept! Kev.
  9. After de-burring and cleaning, I have this... I was a bit worried about the lack of detail. Maybe it's not visible enough? A bog standard 16tonner on the 13'6" Turn Table. No for some bog standard Halfords Grey Primer... ..and the details start to emerge - phew! This is showing the different heights of things I have tried to incorporate... This is the inspiration - Thanks guys. Close enough for government work! I'm very pleased. ...but it's back to the drawing board as I have learned loads and the second "prototype" is going to be even better! Kev.
  10. The latest design done in LibreCAD... The CAD is then converted (manually) into CAM, using VCarve Desktop... VCarve will also model the finished machining - see two posts up. VCarve produces the CNC code that I then run through UCCNC to drive the StepCraft 420 high speed Router... So there is quite a lot of computer work involved in designing a part. My respect for the manufacturers goes up all the time. Now for the real modelling as apposed to virtual modelling! The High Speed Router doing its' job... That's standard Copper Clad PCB and the 1mm Milling Bit is doing about 22000rpm and 1.5mm/s. (The first machining time is about 30 minutes, then a tool change, followed by 20 more minutes machining.) It's quite noisy! ...and that's as far as I got on Sunday as my 13 year old Toshiba laptop has decided that it does not want to work for more than 10 to 20 minutes before just powering off! So, a new cheap PC was bought and set up yesterday and I was back up and running. The results are in the next post. Kev.
  11. Top deck... It's a bit age-worn and distressed with some patches added. I'll see about machining this this evening. Kev.
  12. ..some such bollox or other.. Kev.
  13. Here's a whole rake of these "10-wheelers" on a train heading through KaiFeng in 2004. I remember them as being quite noisy (they were empty) and there was one car, in the middle, which was "hunting around" alarmingly! I wonder if the centre wheel was set wrong and was taking too much of the weight of the car? Kev.
  14. It is BeiJing! I even took a photo of it... Kev.
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