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dr_spock

Eurobricks Archdukes
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Everything posted by dr_spock

  1. dr_spock
    Merry Christmas!
  2. dr_spock
    The hole could stop it from rolling if there isn't enough momentum. There are also molded ridges on the balls. Those could get caught in mechanisms with sharp edges?
  3. dr_spock
    Cool, see you at BITS.
  4. dr_spock
    Maybe connect a volt meter (or multimeter) to the output of the power pack and don't let it run above 9V?
  5. dr_spock
    The PU remote can pair with more than one PU hub, if I recall. I guess one trick could be to fool the PU hub thinking that a PU train motor is attached. With the "train motor", one would get the variable speed control with the PU remote instead of the on-off. It can be done with an adapter going between motor and hub where the hub end of the adapter is wired to ID as a PU train motor. No programming or app are required.
  6. dr_spock
    I believe the ESP32 has a built-in BASIC interpreter. It's basically for debugging if needed. There are also a number of BASIC interpreters for ESP32 on github. You can probably use Leguino to support Power UP hubs too.
  7. dr_spock
    The STL files are available. I suppose one can 3d print the enclosure. Then hack in a basic PWM board and a direction control SPDT switch for "dumb" speed control.
  8. dr_spock
    I think LEGO red is DD1A21 in hex. https://filamentcolors.xyz/colormatch/ Hatchbox ABS may be close. Finding an exact match can be hard. Shredding, melting, and extruding red LEGO bricks into ABS filament could give an exact match. :-)
  9. dr_spock
    Try AI Pay someone to design one for you DIY trial and error
  10. dr_spock
    3rd party or DIY may be the way to go for non-LEGO standard layout geometry. I see Chinese tracks go on bundle sales from time to time. To be sure, look at close up pictures of the product, if you don't see 3D print layer lines, then it is injected.
  11. dr_spock
    The wheels on their product page look 3D printed.
  12. dr_spock
    For a moment, I thought Mad Spamm Bomber was a new train MOC. Please use the Report feature under "..." (located at the upper right hand corner of each post) Select the "SPAM" from the drop down list. One of the available moderators or admin will take care of it.
  13. dr_spock
    I store my complete minifigs in plastic bags by type. There is a bag of pirates, a bag of minidolls, etc. The bags go and sit in a bin until needed for a MOC or vignette. When the MOC is disassembled, they go back into the baggies and bin. Minifigure parts and accessories are sorted into divided storage drawers like these. It makes it easier to find the pieces to add to the figs when building a MOC.
  14. dr_spock
    Having a patent doesn't mean they will make a motorcycle with it. But if someone else does, it's easy licensing money for Yamaha. I think they forgot the aroma aspect of the exhaust and the heat feeling. :-)
  15. dr_spock
    I used to have all LEGO PF but lately I've been replacing bad motors with 3rd party. I noticed some of the 3rd party draw twice as much current than LEGO. Some seem to run a tad faster too. Before 3rd party, I had a batch of electric toy motors to rebuild burned out PF M motors. Pressing pinion gear on to replacement motor shaft is a pain. Buying 3rd party is much easier and cheaper than the new brass pinion gears and motors and labour.
  16. dr_spock
    How about you Robert_Panell13? What would your set be like? Don't be shy or chicken.
  17. dr_spock
    I find LEGO when I work on my car.
  18. dr_spock
    LEGO is also reuseable. You can take apart and make something else. You don't have to buy another one every time. Spend once, use many. At end of the day, LEGO is a business in it to make money. How you use or what you do with their products is up to you.
  19. dr_spock
    I think an industrial SLA printer with an extra large surface area for the powder can 3D print dozens and dozens of the small engines at the same time. It would be interesting if they could give us a behind the scenes.
  20. dr_spock
    Thank you Ben for your contribution to LEGO train community. All the best.
  21. dr_spock
    You could also try ABS. Ratching mechanism may need to be somewhat flexible and not too brittle that it breaks after repeated use.
  22. dr_spock
    Nice. How are the resin parts holding up over time on running trains? I am ok with printing and cutting too. Some times, rather than redesigning and reprinting, it is faster to cut it off.
  23. dr_spock
    35 euros for a single cable? A 12 battery charger like the LiitoKala Lii-S12 can be had for the same amount. Our LUG got around 2 hours running time off AAA NiMH batteries at children hospital outdoor picnic events. For sure DC can be used. I think AC would be more model railroady? One can impose DCC control signals over AC to run DCC and track powered PU trains on the same tracks.
  24. dr_spock

    Tanker car

    dr_spock replied to XG BC's topic in LEGO Train Tech

    Don't think I've seen too many tall and narrow tanker cars. Higher center of gravity could make speeding around curves fun. That style of tank is used for storing heating oil for home furnances around here since it takes up less space in the backyard.
  25. dr_spock
    The OP wants to power the PU hubs off train track power instead of batteries. It could be done by supplying the metal tracks with 9V AC power. Install a power pick up wheel set on the train. Use a bridge rectifier to convert the AC to DC for the PU hub. Connect the output to the terminals inside the PU hub (and pray for no smoke). Use the PU remote or PU App to control the train. (This setup won't be able to run old 9V trains on the same tracks.)
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