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Unread 07-04-2011, 20:44
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FRC #1197 (Torbots)
Team Role: Engineer
 
Join Date: Jan 2005
Rookie Year: 2003
Location: SoCal
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Re: Dual CIM+CIMple box powered bike

The torque and speed will depend on your gear ratio. Without knowing a planned gear ratio from the gearbox to the sprocket (and the possible gear ratios from the small sprocket to the larger ones, and from the larger ones to the cluster on the wheel), it'll be hard to answer that question.

An all/none switch may not be the best idea either. If you have a battery that can provide more current than the CIMs can handle, you may find yourself with two fried CIMs. You'll want some form of protection for the motors--a fuse or breaker will work well. If nothing else, a switch with a fuse/breaker in it.
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Past teams:
2003-2007: FRC0330 BeachBots
2008: FRC1135 Shmoebotics
2012: FRC4046 Schroedinger's Dragons

"Rockets are tricky..."--Elon Musk