Re: Dynamics wheels rolling problem by Adam Trachtenberg on Jul 31, 2012 at 4:52:52 pm
First, you have to set the collision shape of the outer wheel to "moving mesh". By default it's set to automatic which creates a non-concave shape around your object to use as a proxy for collisions. It does that because it calculates faster.
Second, you'll have to scale down the inner wheel a bit because it's intersecting the outer wheel even before the animation starts.