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Ngoc Nguyen

Eurobricks Grand Dukes
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Everything posted by Ngoc Nguyen

  1. Ngoc Nguyen
    Hi everyone, this is something big, red, and full of lights from RacingBrick
  2. Ngoc Nguyen
    Just build one or two things that weighes 250gr or less, simple as that.
  3. Ngoc Nguyen
    Well at least for a 199x person like me, I missed the original Ferrari F1s in the early 2000s and have always wanted a modern version, so at least the 42207 satisfies that need.
  4. Ngoc Nguyen
    That just sounds like the linkage for the rear wheels in the 42210 Nissan, just without the balls.
  5. Ngoc Nguyen
    What exactly are synchronized air jacks?
  6. Ngoc Nguyen
    Hi everyone, this is a review that I thought would be out earlier but didnt come out at first but is finally here from Racing Brick
  7. Ngoc Nguyen
    Did the lineup cause you a car-diac arrest?
  8. Ngoc Nguyen
    HI everyone, this is a call for action from RacingBrick
  9. Ngoc Nguyen
    Does Buwizz provide more power to the motor? I can't really figure out how direct drive L motors have enough torque to drive the model at that speed. In my RC mod I have to gear it down by the ratio of 1:20.
  10. Ngoc Nguyen
    I'm building this set on Studio and I encountered this situation. In step 171, these two parts appear to collide. Can anyone with the real set show how these two pieces interact in real life? I already checked my digital build and it seems to follow the instruction correctly.
  11. Ngoc Nguyen
    Someone made a 2x2 technic pin, I found it on Reddit. It's pretty cursed lol.
  12. Ngoc Nguyen
    Guys, a winner is found! I finally found an arrangement that makes the 42215 playble. I define playable as having the arm move at decent speed with decent torque. And the solution is just one extra L motor. I actually did try hard-coupled motors in my previous iteration, but because I put a linear clutch in the transmission for the base LAs, they don't work reliably. Fortunately @gyenesvi pointed it out. I removed it and the whole thing works flawlessly. Honestly at 430$ this is what should have been sold in the beginning. Demonstration.
  13. Ngoc Nguyen
    You were right. I rebuilt the 42215 gearbox with two hard-coupled motors, this time without the linear clutch to the base LAs. The two motors showed sufficient torque to lift the arm at playable speed.
  14. Ngoc Nguyen
    Instructions for B model have always been digital so they have always been hi-res.
  15. Ngoc Nguyen
    Guess what a shocking discovery I just made. Lego no longer offers instructions for Technic B models, even for past models. I just looked up instructions for a couple of sets (8043, 42043, 42009), and only instructions of A models are listed. Try it yourself: https://www.lego.com/en-my/service/building-instructions/42009
  16. Ngoc Nguyen
    Here's the demonstration. The transmission can always be modified for more torque through some gear swaps, but that would come at the expense of speed, which is what I'd rather avoid. The setup I used in the video is a careful balance between acceptable speed and sufficient torque for bucket coupling/decoupling. I haven't tested, but I don't think there's enough torque to play digging.
  17. Ngoc Nguyen
    I'll remove the linear clutch and test 1 motor vs 2 hard coupled motors.
  18. Ngoc Nguyen
    That sounds reasonable. I'll try the hard coupled motors with no linear clutch to see how they perform then.
  19. Ngoc Nguyen
    Not really, for some reasons the internal clutch of XL LAs didn't click at all. In the set up with one motor and no linear clutch, there is not enough torque so the gears would skip instead. I don't know if the XL LAs dont have internal clutch or not.
  20. Ngoc Nguyen
    I added a linear clutch on the transmission to the base LAs. If the clutch clicks, the torque to lift the base LAs is inadequate. Left side is original transmission, right side is the transmission with a linear clutch. The linear clutch must be moved to the middle to avoid collision with the arm. My expectation was that the hard coupled motors should not struggle to lift the boom, which means no clicking when lifting the arm. The result is that the hardcoupled motors resulted in less clicking than a single motor, but they still resulted in clicking.
  21. Ngoc Nguyen
    I think so too but when I hard coupled two L PU motors for the 42215 they perform barely better than one motor, so Idk
  22. Ngoc Nguyen
    That's what Im looking for, thanks a lot! On another note, can it be proven that two hard coupled identical motors provide more torque, preferable twice, than one motor?
  23. Ngoc Nguyen
    Is there any resource that provide the exact torques produced by various motors?
  24. Ngoc Nguyen
    Someone got 250k sub!
  25. Ngoc Nguyen
    Deleted
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