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jeff_p

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  • Location
    East Sussex
  • Interests
    Building an 00 gauge '20s early '30s Southern Railway model railway.

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  1. I think it all starts with choosing a suitable technology (DCC system) which supports the functions you require. The approach to the wiring of the track, accessories etc will naturally fall out of their documentation and preferred practice guidelines. Having said that the principle of a power district is that each district is electrically isolated from it neighbours and (effectively) has just two wires feeding each district. This is something I've been playing with myself using a system initially based on the DCC++ Arduino hardware and firmware, but has since gone fully bespoke using bo
  2. Seven districts ... that's going to be fun
  3. jeff_p

    Cracking on

    Lovely job on the crane .. I'll have to re-visit mine now
  4. My wife has just pointed out that I should have mentioned that she soldered all the parts to the boards. So the neat soldering you can see is her work. It's probably too late to avoid consequences now
  5. Just a brief one as I'm a bit chuffed with some initial success with my DCC "box". I've been working on extending its abilities past the normal range of a DCC generator/controller as I outlined in the last entry, and now, finally, the various elements have come together. I'll aim to write up something more informative soon (I haven't started testing it yet), but my foray into PCB design and manufacture has worked out better than I anticipated, and resulted in the following "solution" for the controlling electronics: The Arduino UNO has been replaced with
  6. Yes, I know. I'm waiting for the Arduino version of the rp2040.
  7. ... and had already confirmed a modest case of "stepping over a line", there's been some additional work going on. I give you a DCC Generator that supports multiple Power DCC Districts. OK. Stunned silence from most of the audience, and I would imagine for 95% of those people using DCC out there this means little to nothing and even if it did has little to no practical use. Question: What is a DCC Power District? Answer: As I understand it it's a mechanism for subdividing up a layout is separate areas such that if there is a "power event" within
  8. It's an open source (and hardware) alternative to buying a DCC Controller system from the likes of Hornby or Gaugemaster (other manufacturers are available). To be fair this box is only half of the solution. If you use this (here: https://github.com/GreyLimit/DCCGenerator ) in limited DCC++ emulation (or indeed just build yourself a DCC++ solution, see here: https://github.com/DccPlusPlus ) and use the JMRI software on a PC then you don't need to buy a commercial solution to operate DCC models and accessories on you layout. I've also been writing an alternative to JMRI (which I c
  9. There's no doubt that I have crossed some form of line. None what so ever... I give you, "Yet another persons home grown DCC generator" (thingie): What is it? It's effectively an alternative to the DCC++ Arduino and Motor shield solution for driving your DCC trains. It is all fresh code which has it's own selection of pro's and con's, but I am chuffed with the LCD giving a second by second summary of what is going on (as far as the Arduino can tell). The "Lnnnn" gives the value returned by the Motor Shield for the power/load passin
  10. David, You're absolutely right. All the pictures of work shops I can see (on google) have lathes and other machines with the belts heading straight up but the limited number of pillar drills all had an intermediate shaft on the ground behind the pillar. So far it would seem that pillar drills are the only machine I've noticed like this, but I would guess that any machine driven "from the top", like the drill, would have used a similar mechanism. Live and learn, hopefully. Jeff.
  11. A thought just crossed my mind. I would have assumed that the pillar drill in the photo has been adapted to be operated by the floor mounted electric motor (right where all the swarf would be heading). Would it not have originally been driven from an overhead power shaft (can't think of the proper name at the moment). Should I have kept the thought to myself? One way or another, that cannot take anything away from the results though; Just awesome. Jeff/
  12. After a wee comment from one of the local club members, I've been "refining" the servo motor code for the Arduino, thus: Bouncing servo motor Refining isn't perhaps accurate, more of a complete over haul.
  13. So, given that I've been playing with servos it seems that producing something simple to drive them would be a good idea. If you are of a mind, and fancy a modest challenge, then over HERE (in Github) is the source for the Arduino firmware. This, after relatively limited testing, should work on a Nano, Uno or Mega2560 and control as many servos and the board has PWM outputs (with some reasonable exceptions). Here (and arguably meaninglessly) is a picture of an Uno operating a single servo: What this *has* shown (and provided justification for writing the
  14. Just a quick one. "Can I arrange to put the switches on the actuator" was, I think, the last question. Yes: and So there are "T Slots" in the chassis into which rather small M1.6 bolts fit and M2.0 might fit (I haven't any to try). I would hardly say that it is simple, but it is achievable. Attached are the STL files for the chassis, the rod and two wheels (one with 10mm throw and the other with 4mm throw). Please feel free to play though I would warn that I am new to this CAD for 3D printing act
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