How do I fix my wheels (which use hinges) bumping around in a rail track

Hey guys!
I’m having some issues with a project I’m working on and was wondering if you could help me fix them.

  1. What do you want to achieve?
    I’m making a train system where the boogies should travel smoothly on a rail line

  2. What is the issue?
    As you can see in this video, the boogie movement is very rough, the boogie is constantly hopping around.

  3. What solutions have you tried so far?
    I’ve tried changing the wheel shapes and positions, I tried different speeds, and nothing worked so far.

Looking forward to hearing from you :slight_smile:

Are you using unions?
Maybe try changing the CollisionFidelity property to PreciseConvexDecomposition