I’ve been trying to figure out how to make the sphere move but there is so little proper information on how to do it I’ve been stumbling around for a couple of days (and completing Uncharted 2…). You can use a ‘constant force’ but it’s not very responsive and I need to be able to limit the rotation. A configurable joint seems the best bet but instead of wasting time on my complicated model I went ‘back to basics’ and made a simple model with just a sphere and joint to figure out how it works. You can only rotate in two axis but this is ok, I can probably nest the joint in another hinge joint and it will still work…..Screenshot 2014-09-14 11.25.21