Thanks for the replies, but I've only got it half-working. The spin now varies speeds, but reverses itself halfway through the animation and spins in the opposite direction. I'm sure its a rookie mistake, but I can't seem to find out what I'm doing wrong. And if I might expand on my original project, does anybody know of an easy way to realistically animate the ring spinning perpendicular to the floor and slowly coming to rest parallel, like when a coin spins or falls on a hard surface. Thanks again. Tha