pic: Experimental VP drive gearbox

[Roboshant]

Originally Posted by bkahl

Are you sure that the VP will hold up with 2 CIMs powering it?

The load ratings sheet for VPs shows very different charts for a 775 motor and a CIM motor, let alone 2. While this design may hold up okay for a 775pro, I think this may put the VP out of spec with 2 CIM motors driving it.

I would be pretty cautious about 1 CIM going into a VP, let alone 2. Especially in a dynamic loading situation like a drivetrain.

Yeah that is something that I definitely did not consider when designing this gearbox. Talking to a student on 1296 about their gearbox, he said that they welded the pins and bored the sun gears and added needle bearings, but considering the step up from 2 775 pros it probably would encounter problems. It would be interesting to see how a GEM would work for this application.