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Revolute Joints and mass

Topics: User Forum
Sep 24, 2009 at 1:11 PM

I created a box (mass 500) near its corners four smaller boxes (mass 10 each). Then I connected them to the big box with Revolute Joints. This setup is really unstable -- from the slightest contact the small boxes start to shake and fly around. I tried to experiment with the joint's properties with no luck, but then, for some reason, I tried making everything lighter: The big box 5, small boxes 0.1. Then the simulation was stable.

Can anyone explain, why? I clearly haven't understood how a Revolute Joint is supposed to work. It seems to act almost like a spring.


Sep 29, 2009 at 4:12 PM

Have you checked the boxes restitution coefficient? Maybe that's what makes the boxes bounce that much when they have contact between them.