Team 2729 also is selling some boards they designed and made that are quite nice and that wire right up to the sidecar with a PWM cable; proceeds fund their team. See
http://www.chiefdelphi.com/forums/sh...2&postcount=14.
We glue a small diametrically magnetized ring magnet (K&J Magnetics R424DIA) on the back shaft of a BaneBots motor to drive it, 'tis robust. See
http://www.chiefdelphi.com/forums/sh...d.php?t=112294