Nico Strobbe posted a rigging-challenge over at CGCociety in 2010, he has provided a stunning model of a mechanical cat consisting of 437 different parts which can be downloaded here:
I started to rig this creature about a year ago, being my first attempt at mechanical rigging I quickly ran out of ideas on how to rig the legs properly, so I gave it up.
However I picked up the rig again about two months ago, starting from scratch on the entire thing, after a hard struggle I finally managed to figure out how to solve the legs (which is the key to the entire rig) and completed the rest of the rig.
Here’s the rig-presentation:
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