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About davidzq

  • Birthday 10/16/1991

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    Crocodile Locomotive

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  1. davidzq

    Question about U.P. locomotive

    ACE3000 comes to mind, though that wasn't UP. Chessie (who also ran yellow locomotives) were interested in the project, so there are several drawings in their scheme.
  2. davidzq

    [moc] New Haven Railroad Y4-A 0-8-0

    Hmmm looks like that thing could use an axillary tender. 🤔 Great looking model though! Love seeing unusual prototypes.
  3. There are 4 stud pieces available for PF from BrickTracks (injection molded), TrixBrix (3D printed), or 4D Brix (3D printed) which can be adapted to 9v with copper tape. At least until a FX releases their own. Or you can try reaching out to Andy Mollmann (OKBrickWorks) who sells 3D printed 9v track (HO Code 100 rail inserted) and see if he can produce 4 long.
  4. http://l-gauge.org/wiki/index.php?title=Reference_Track_Configurations
  5. davidzq

    Thyssenkrupp multi elevator

    "Not unnaturally, many elevators imbued with intelligence and precognition became terribly frustrated with the mindless business of going up and down, up and down, experimented briefly with the notion of going sideways, as a sort of existential protest, demanded participation in the decision-making process and finally took to squatting in basements sulking. An impoverished hitchhiker visiting any planets in the Sirius star system these days can pick up easy money working as a counselor for neurotic elevators." -Douglas Adams Will be interesting to see this once you've expanded the system.
  6. You would want two separate transformers, to have independent control of each loop. For the switches, you could use copper tape to run power through the straight section rather easily. Powering both the straight and diverging routes with tape would present some issues, namely the need to have a separation isolating each loop. There's also the durability factor of the tape. Why not simply use the FX P40 switch which is soon to be released? It's a 9v R104 switch.
  7. davidzq

    Motor Specifications for 9V Train Motor (#530)

    One minor bit of information about swapping PF/PU motors into 9v, which I haven't seen addressed in any of the videos. There are actually two versions of 9v motor. The older, far more common motor produced from 91-05, which are shown in all the guides and is certainty what OP has. And the newer 05-06 motor, which used the same exact motor as the PF/PU motors but with the 9v contacts soldered on. These newer motors have a slightly larger tip, so require modifications for use in the older 9v shells. Photo of motors As for identifying what type of motor your 9v shell uses, there is a quality control code on one end of the bottom. The older style 9v usually have a four digit code, the newer two digit code.
  8. davidzq

    Tracks available on Pick & Build

    I have very fond memory of the first year that cows were available on LUGBulk. Order 10 cows, and 20 horns to go with them. Receive 10 cows prepackaged with 2 horns each. Receive 20 horns prepackaged with another horn and a cow!!! Result, 30 cows, complete with horns. Now imagine the fates of the people who ordered 100+ 😛 As for the thread topic....definitely a great price! Too bad I already got my fill of plastic track off LUGBulk years ago... in addition to my several hundred 9v straights...
  9. This is great news! Glad they were able to overcome anticipated supply issues on the controller.
  10. davidzq

    9V train development

    While FX brick can be a little slow on their updates on the website (as they generally only post when there's new releases), Michael Gale does fairly regular development updates On his Flickr page. The latest being only a month ago. All of those functions are currently possible using the FX Brick or a DCC encoder, if you're willing to modify a 9v motor (add a PF cable to it).
  11. Opened up one of my 9v motors for you. Full markings are: BZW 04P 15B C605 So...TVS Diode BZW04-15B I also opened up a PU train motor. The capacitor is a surface mount, with no label 🙁. It's labeled as C2 on the board. I don't have any equipment to test it's value. Traces to each motor lead. But it also implies there's a C1 somewhere.... internal to the motor, maybe? But I can't open the shell without removing the pressed on gears. One of the motor leads passes through a 509R resistor (labelled R1).
  12. Oops, you're right, the disk is the over-current thermal protection. The black component is a TVS diode for over-voltage protection. Been a few years since I've opened up my motors and my memory got mixed up 😛 Anyways it should be easy to add a capacitor. Simply solder it to the bussing on the motor.
  13. That is the thermistor (overload protection). On PF/PU motors, there is a capacitor, with the thermistor being on the motors wire lead.
  14. What XC BG said is correct, as heat is a byproduct of electrical. Another factor is actually your PWM power supply. The PF motor features a capacitor to help smooth the voltage. The 9v motor does not, so the voltage spikes are dissipated as heat by the motor. It's not enough to effect the motor, especially because it has thermal protection, but it does bring the temperature up. Michael Gale actually did a nice summary of this Last week. Another factor is weight distribution. The motor with the most weight above it does more work. Though the difference is typically negligible on most Lego locomotives.
  15. 0/10. Source material clearly shows orange, yellow, red, orange freight cars, not this ridiculous yellow, orange, brown, brown. Completely wrong! 😛 Well done! The details are beautifully captured. The roof technique is simple and effective. I likely would have done something very similar (and just as fragile!).