Visit www.blendbend.com for the videotutorial.
Original scene by (and thanks to) Chris Kuhn.
Once, time ago, I dreamed on running a marathon. Months later, I run it. I'm now dreaming on making something like this motor with parts moving evenly, like an orchestra well led. I like this model a lot.
I'm pretty sure you'll soon make it happen. I should -again- thank Chris Kuhn. The original scene (model-rig-animation) is a result of his work and skills; I've just tried to use some compositing tricks to alter the final result/render.