Ok here's what I did. Sorry about the framerate, but it should still be clear.

rings rotation - YouTube (https://www.youtube.com/watch?v=qoKkYGIiW5w)

So what am I doing wrong?

Never mind. I figured it out. I just had to add a few more keyframes during the rotation itself.

Thanks for your help

Your example is exactly what I want. Unfortunately I must be missing something. I parented each ring to its parent, rotated the outer one horizontally, then for the next one changed the rotation...

Hi all

I have an object like this. I'd like to animate the rings rotating one within the other. The problem is as the outer ring rotates the angle and pivot location of the inner ring changes.
...

Update:

https://dl.dropboxusercontent.com/u/51719996/preview5.jpg

https://dl.dropboxusercontent.com/u/51719996/preview6.jpg

I also have a question for the experts. Does MR have some problem...

Hi ;)

I've been learning maya for a few months now.

Well, the first that wasn't done with the help of a tutorial or guide. And it's a big one. I now think I should've started a bit smaller. Well here it is.
...

Digital tutors make very good tutorials for beginners. I used them myself. I suggest starting with the introduction to Maya 2013 tutorial. It really covers the basics for everything from modeling...

Well I managed to do it. But there's a problem. You see the metal piece farther from the camera looks like it's sunk in instead of bumped out. The shadows are on the opposite sides.
...

Ah, that was the problem. I didn't realize the meshes had to be on top of each other. I tried again, and it worked, but not very well. I tried bump and diffuse maps. The wooden board texture...