View Single Post
  #7   Spotlight this post!  
Unread 07-02-2017, 16:55
SenorZ's Avatar
SenorZ SenorZ is offline
Physics Teacher
AKA: Tom Zook
FRC #4276 (Surf City Vikings)
Team Role: Teacher
 
Join Date: Jan 2011
Rookie Year: 2011
Location: Huntington Beach, California
Posts: 951
SenorZ has a reputation beyond reputeSenorZ has a reputation beyond reputeSenorZ has a reputation beyond reputeSenorZ has a reputation beyond reputeSenorZ has a reputation beyond reputeSenorZ has a reputation beyond reputeSenorZ has a reputation beyond reputeSenorZ has a reputation beyond reputeSenorZ has a reputation beyond reputeSenorZ has a reputation beyond reputeSenorZ has a reputation beyond repute
Re: pic: 2980 practice bot Climber

The torque output at the motor shaft is divided by the radius of the drum to get force. Bigger drum, less force.
You'd be better, as mentioned above, using a lower gear reduction on a more powerful motor.
We've tested 48:1 reduction on a CIM and a MiniCIM just driving a shaft, and they pull 120lb fast enough.
__________________
2013-present: FRC Team 4276, Surf City Vikings
2011-2012: FRC Team 3677, The Don Bots
Reply With Quote