View Single Post
  #12   Spotlight this post!  
Unread 11-02-2011, 16:05
jreuter jreuter is offline
Registered User
FRC #1073 (Force Team)
Team Role: Mentor
 
Join Date: Jan 2009
Rookie Year: 2007
Location: Hollis, NH
Posts: 33
jreuter has a spectacular aura aboutjreuter has a spectacular aura about
Re: Smoking RS-550 motors

The guidelines I use say to target motor operation at peak power (or a little to the left on the RPM/torque curve, to give wiggle room for gear efficiency and wire impedance loss). This is at roughly 50% stall torque and 50% free speed.

I know we are above the 50% torque point, but not by much. I still think this would be a normal operating point for a motor.

Am I off anywhere? Do any of you use different guidelines for gearbox design?

Note, we are actually targeting to operate at <30% of stall torque, assuming we get rid of the racking/binding. I'm just curious as to what other people use.