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AndyCW

Eurobricks Citizen
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Everything posted by AndyCW

  1. AndyCW
    And this would give kingpin inclination. Even better. How much kingpin is too much? And is this an example of that? v/r Andy
  2. AndyCW
    That video breaks it down "barney style". If you can't understand differentials after that video, then I don't know what will teach the concept. v/r Andy
  3. AndyCW
    We've had similar temperatures here. It makes it hard to summon up the motivation to go outside. v/r Andy
  4. AndyCW
    Cool. This two part wheel concept could be used to have multiple wheel designs while using minimum pieces. Many after market wheel companies will do this. One "hoop" and many center hub pieces for whatever offset is needed. This an example of a planetary hub center piece. v/r Andy
  5. AndyCW
    I like the hub/wheel part. Is there anyway to get more offset in order to move the steering point inside the wheel. That wheel makes it look like beadlocks. v/r Andy
  6. AndyCW
    Awesome. I love 4 link setups. I video of its performance would be appreciated. v/r Andy
  7. AndyCW
    I worry about the spider gears in your differential. Most vehicles that use that size tire will use reduction after the differential to "protect" the spider gears. On the other hand, you might not have enough torque to damage them. v/r Andy
  8. AndyCW
    ...and wouldn't the ears on the linear actuator holder that is acting as a spindle get caught up in the wheel. You could run a pin through the linear actuator holder and the half frame that would hold it together. v/r Andy
  9. AndyCW
    I had to do a lot of weight reduction to get it to perform like that. It is down to about 650g. The heavier predecessors were geared down 1.67:1 and this one is 1:1, but there are 2 gear exchanges between motor and wheel. v/r Andrew
  10. AndyCW
    Here is my most recent creation. Work, school, moving, and family time have limited my building time. https://imagizer.ima...90/546/ys4y.jpg Questions,Comments, Concerns? I'm having a devil of time embedding pictures, links, or videos in my posts. What's up with that? v/r Andy
  11. AndyCW
    Are you going to use some wizardry in the controller to mix the two sides to get decent turning performance. Kind of like doing a simulated subtractor. It would even be cooler with the red treads on the tracks. BTW I have actually seen one of Howe and Howes designs first hand. v/r Andy
  12. AndyCW
    I think we may have more bad news. spider gears in your differential will not survive u-joint in the knuckles won't either Most trial trucks use hub reduction to reduce the stress on the spider gear and on u-joints. The differential you are using is prone to skipping teeth on the pinion unless some reinforcement is done or there is the aforementioned hub reduction. I look forward to test videos and welcome to the community. I hope you prove me wrong. v/r Andy
  13. AndyCW
    Oh wow. I was wrong. Thanks. Gearboxes work with electric motors if you need different amounts of wheel torque for different scenarios. Crawling and cruising. v/r Andy
  14. AndyCW
    I'm just one guy and I could be wrong. Do some tests and let us know how they turn out. Every time I am wrong I learn something new after all. v/r Andy
  15. AndyCW
    Make those U-joints scream. Ha Ha v/r Andy
  16. AndyCW
    It seems that they are being inconsistent or I got a lousy customer service rep. v/r Andy
  17. AndyCW
    The chains are weak. They will break. There is a reason that they are not used in trial trucks. I wouldn't expect this setup to withhold any abuse, but I don't have a better solution for you. I let my 5 year old son drive my stuff around to find weak points in the design. v/r Andy
  18. AndyCW
    The only non train controller solution is to depart from Lego and go proper RC hobby grade components. Even the RC Lego stuff was not proportional. v/r Andy
  19. AndyCW
    I tried the train remote coupled with hockey springs to create proportional control with self centering, but the springs didn't always return the controller to the idle position. The plus side was that I created a standard two stick controller in the process. Sounded like a great idea, but implementation was poor at best. v/r Andy
  20. AndyCW
    I can see a market for this. You have already had people inquire about buying them. Good Luck. v/r Andy
  21. AndyCW
    Usually we get stuff here first or near first. This is strange that these sets are not stateside yet, but we can't be in the front of the line all the time. I couldn't even order parts from the snowmobile from customer service a couple of weeks ago. I "had to" go to bricklink. v/r Andy
  22. AndyCW
    According to Philo 2 XLs draw more current than either a single v2 RX or battery box can supply. Even one XL is capable of drawing more current than a single RX can supply. Switching to relays and bypassing the current limiter in the battery box may allow a change from 3:1 gearing to 1.6667:1. That would be an even scarier monstrosity. v/r Andy
  23. AndyCW
    The bracing around the gears matters. Try to establish double shear connections. Especially on pinion gears. I have not had any trouble with XL motors eating well braced gears. If it ate a gear, I just added more bracing around the enclosure. v/r Andy
  24. AndyCW
    That looks awesome. The planetary hubs seem to fit the RC tires very well and the gearbox must be fairly complex. v/r Andy
  25. AndyCW
    Being on the outside of the beam also means that the retract mechanism doesn't need as much travel to get the wheels up into the buckets. v/r Andy
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