I am trying to recreate this where a spinning wheel inside an object causes gyroscopic precession. I have tried to model the spinning part as a completely separate object from the holder but the contact point is too small and the parts blow up. I have tried to do a hinge connecting the two but it doesn't seem as though they communicate any momentum data across the hinge. This post exactly covers what I am going for and someone created an example, but it is no longer available and there are no instructions.
I imagine there should be a way to tell blender to not worry about collisions between the two objects (a la hinge) and for the angular momentum of the spinner to influence the holder, but I can't figure it out. Thank you!
Here's a link to the current file.