[sanddrag]

I forgot to mention a couple things.

First of all, I think all the threads involved with "the drivetrain story" are GRRREAT. Kudos to Patrick Wang for getting us going on something important. I was even inspired enough to go buy a CAD program.

Anyway, what I really posted for is I was wondering how many robots use treads instead of wheels? Does it give that much more traction? I would personally use them for the coolness factor alone but the pulleys are between $80 and $120 apiece!!! How hard would it be to make our own. Could it be done on manual mills/lathes or would we need CNC.