Wheel Joint Help?

Unity Engine
1

Hello guys

Im trying the new wheel joints and I’m having problems to make it work.
I setup my truck like screenshots. as soon i enable the motor via script the whole truck rotate in a weird way.
Someone have a suggestion to solve this issue?
Im using last 4.5 unity version

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2

Looks like both wheel joints are on the chassis? Maybe try disabling those wheel joints and add a wheel joint to each wheel and set the Connected Rigid Body to the chassis. I have done this with Hinge Joints (pretty much identical) to Capsule Colliders wheels with excellent results.

3

thanks for your suggestion crag… i tried like you said, same issue… however i noticed this is unity 4.5 bug… i fixed this using the inertia calculator posted here:

http://forum.unity3d.com/threads/248602-4-5-Physics-Inertia-fix-InertiaCalculator-component-and-editor

Thanks!