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    Train help

    Scheduled Pinned Locked Moved SketchyPhysics
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    • N Offline
      Naththagr8
      last edited by

      I'm trying to make a train that follows a track. But when it comes to a turn, it derails. The wheels are pairs connected by an axle, which is turnable, connected to a main wheel part, connected to the main part. Either tell me how to fix it or upload it fixed.

      main train by trainguy


      sketchy turn train test.skp

      Naththagr8
      Top Headlines: "Beverly Hills 90210, Cleveland Browns 3"

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      • C Offline
        CPhillips
        last edited by

        Its a pretty good model! I am not exactly sure why it fails but here are a few ideas.

        Make the inner part of the wheels thicker. The part that goes inside the track may be too narrow.

        The wheels seem to be turning very fast. I expect that is to simulate the friction of a big heavy train. But its like the train is burning rubber the whole time it is moving. And when those very fast spinning wheels finally catch on something the whole wheel jumps.

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        • N Offline
          NorviewsVeteran
          last edited by

          My suggestions are:
          -don't let each axle turn independently, if a wheel catches it torques around really bad. And its less realistic.
          -don't have the ends of the rails beveled, it gives the wheels something to catch on (counter intuitive I know).
          -use a simpler model to get everything right. You can use the same dimensions without eating up RAM and your video card.

          Also why is the engine articulated behind the cab?

          ```
          //This_Is_All(I)+=Know()About.Code;
          ```

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