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BusDriverMan

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  • Location
    North-East Scotland
  • Interests
    N gauge, DCC, electronics, Arduino, signalling, interlocking, 3D printing, CNC, "what if" fantasy models, politics

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  1. I've thought about making an experimental miniaturised NX panel, either standalone (with probably Arduino-based interlocking, TD berth control, and train simulation) or interfaced with SimSig. Probably using pushbuttons and a "CANCEL" Shift key rather than push-pull switches because cost / availability. I'm thinking of a design based on ~25mm square tiles, probably cosmetic rather than actually modular, using 64x32 OLED screens for berths and possibly addressable RGB LED strips for the route lights. Gratified the relevant Railway Group Guidance Note gives provision to have the firs
  2. This is just to say you're building my dream layout here - 3rd rail with fully prototypical signalling…! I'm actually devastated that you've had so much success with JMRI as you expertly documented in the other thread. It confounds me, so I was convinced I'd need to write my own system running on a Raspberry Pi and a network of Arduinos (or Atmel microcontrollers with Arduino firmware) to achieve a layout with working signalling controlled by a route-setting panel. But now I know JMRI is definitely a viable option
  3. @D6150 go on, give us a clue - real prototype or ahistorical? Which hemisphere?
  4. BusDriverMan

    Starfighter!

    wait wait you've missed off the wing outer panels, no way an aircraft had such tiny wings
  5. Ah, there was a long discussion about servo twitching I read recently but can't remember where. One solution / mitigation was firstly to lay out separate kinds of wires separately in an orderly way as ISW has done, and to glue a strip of aluminium foil to the board behind the servo wires, connected to the servo ground at one end. I think. Inspired as always by how organised your wiring is!
  6. The MegaPoints controllers seem expensive until you have a go at driving multiple servos yourself from an Arduino - at least in my experience. I hadn't added any physical controls for calibrating the servos - they can be set up and configured, but only by plugging a laptop into the Arduino and sending commands over the serial interface. I was proud of that at the time, but very much want the layout to be entirely independent of any PC. I got a generic servo driver board off Ebay - a breakout board for a PCA9685, connects with I2C - and could not make it work right. Unless you're re
  7. This post gives me the uneasy feeling I should be measuring and/or calculating current consumption before getting the soldering iron out. 5V layout electronics currently consist of an Arduino + motor shield DCC++ base unit, two Arduino Nanos for the DCC and point controllers, and three servos for the three points I've installed so far - so well within the capabilities of the 5V wall wart powering them - but I've been perpetually meaning to switch the 5V supply to the output of a converter from the 15V DCC supply. Hmm. Might need to start a topic in the DCC or electronic
  8. Daisy's a Met-Camm design, right? Plans to produce a 101-based bubble car?
  9. I'd never heard of this unit until reading your blog - what a unique design!
  10. Could it still be used as a grounded van body in a goods yard, set a few decades later?
  11. What kind of errors did you encounter?
  12. I love this. I have the opposite experience - I have a small shunting layout with a homebrew controller running via DCC++. I hate the centre-off speed control and am gradually getting round to building a controller that's even more cumbersome than the direction switch plus speed knob you were using. What I'm going for is a reversing switch, potentiometer power control, and spring-loaded release/lap/apply brake switch, and controller-side physics simulation… I'm expecting it will make shunting more fun. If so, will invest the time in printing/fabricating more elaborate c
  13. Hmm - that looks like the makings of a Class 34 to me!
  14. Can we take a moment to appreciate that (cast concrete?) signal gantry at East Croydon. Wowee.
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