The Crab Challenge

Well, here we go again...
I'm assuming you've all submitted your Inventor award submissions already, and are probably looking for something to do with your mad CAD skillage. So I'm issuing a challenge: Design a crab drive. This is a very complex thing to do in Inventor, and I'd like to see which teams can come up with a plausible design. The "submission" shall be two renders: One of an individual module, the other of the frame with modules onboard. There won't really be a single winner, just us giving props to designs that seem possible.

Go for creativity! You could go with a traditional crab, or you could go with a coaxial. You could even think up something new!

Adding onto the theme of time limits that FIRST gives us, lets set a deadline: Two weeks, or on the 22nd. All designs should be posted by then, and then we can begin to examine the details (plus this thread will serve as a good inspiration point for teams wishing to try out a crab).

So fire up Inventor!