I've got a few drive train ideas I'm working on, but they are only in the early stages. As far as I know I haven't seen what I'm thinking of before, but then again I haven't seen a lot
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I'm think it would be cool to see some climbing bots capable of more than what we saw for FIRST Frenzy (small uneven surfaces maybe?) but that would all depend on the field. The best way to see new innovations is for FIRST to throw us a curve ball next year.