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Unread 03-12-2012, 20:10
Brandon_L Brandon_L is offline
Back @ it again with the white vans
AKA: Brandon Liatys
FRC #2180 (Zero Gravity)
Team Role: Mentor
 
Join Date: Jan 2008
Rookie Year: 2007
Location: Newark, NJ
Posts: 1,207
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Re: Balancing an Arm

Quote:
Originally Posted by JVN View Post
The bigger advantage of course is that if you reduce the load your motor needs to lift, you can use a less powerful motor to accomplish the task at the same speed. 148 (and 217) have used a single globe motor as our shoulder joint in years where many other teams are using a CIM or 1 or 2 FP motors...

The weight of the arm is (reasonably) balanced, so the motor just needs to lift the weight of the game object.

-John
Im quite interested in how 148 decided on where to have your arm balanced. Just straight out horizontal? Or something game specific like near the top rack in logomotion?

I didn't mean for this to turn into a "balancing an arm vs gearing" thread, I was more interested in methods of balancing an arm. Not that I'm ruling out any of the pro-gearing points, just looking into balancing at the moment. It seems like the easiest way would just be surgical tubing. I'm just concerned with how you decided where you want it balanced now.
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FRC 2495 - Hamilton West Robotics [2007-2014] - whats a..."hive mind"?
FRC 3929 - Atomic Dragons [2012-2013]
FRC 2180 - Zero Gravity [2017-]

Just trying to collect all the possible team colors