Alrighty, here's my really immensely crappy drive base. I sort of forgot about this thing until like an hour ago, and I have to leave in 20 minutes.... So here it is!

The good news is that it will drive.

One thing to note: there's no tensioning on the chain, as I spent way too much time doing the math provided in a Martin Sprocket catalog on calculating the right distance in between sprockets to not need tensioning. Not sure how it would work on a real bot, but in concept it seems to be pretty nice.

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