15T CIM Shaft Pinion Gear (DeWalt project)

[craigboez]

Hey Jack

Thanks for the reply. I was thinking of PMing you directly, so this worked out well.

My motivation for leaving the main stage in is to get a lower RPM so we can actually use the shifting capability of the transmission AND get the benefits of direct drive. I'm guessing with your setup you don't use med and high gear (at 25 and 33 ft/s)? Using 4" diameter wheels and keeping the first stage in gives theoretical speeds of 3, 8, and 11 ft/s - which seems fairly ideal for slow, med, and fast bot speeds.

Buying an extra tranny to steal pinions from is a great idea. Thanks for the input. How would one go about turning down the CIM output shaft? Can that be done reliably without damaging the motor?