Never heard of a Planimeter... I'm going to have to look that one up :-) Actually, its for the intro of my demo reel for a grad school... Everyone has told me that my resume is "well-rounded" (CS degree, theatre scholarship, animation hobby), so I decided to animate a sphere with a bit of personality :-) I planned it out, but at one point I need a high speed, long distance rotation in different directions, so I decided to write a python script to automate it. That way, I just move the sphere where I want it, and it will roll appropriately. When I finish it, and if it works, I'll put it in the freebies for sure. IMO, python was almost MADE for this sort of tedious task... now if only I can code it right :-) -RP