Hi kluster! 
A while back i found a set of tutorials that cover collisions.
[Panda3d Collisions made simple)
I hope it will be able to help you as much as it helped me.
It seems the downloads still work.
Good luck and i hope it works for you. 
Hi kluster! 
A while back i found a set of tutorials that cover collisions.
[Panda3d Collisions made simple)
I hope it will be able to help you as much as it helped me.
It seems the downloads still work.
Good luck and i hope it works for you. 