Thread: Disk brakes
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Unread 20-12-2006, 18:16
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Re: Disk brakes

Quote:
Originally Posted by Lil' Lavery View Post
And you had enough traction.


The essential point that I was making is that the Victor brakes are almost always good for use in a drive-train in FIRST. I'm willing to bet that one of the robots involved in the pushing match (either yours or the robot trying to push you) will lose traction before the motors back-drive in brake mode. Especially considering a vast majority of pushing doesn't occur head on (a great deal of it is rotational in the world of FIRST, something that a braking mechanism that locks the wheels won't help with). If you want a system to prevent torqued out of position, it would have to be in contact with the playing field rather than the wheels.
Mechanical brakes (such as disk brakes) may be a valid solution for other aspects of the robot, such as arm and shoulder joints.
My post was a follow up to M. Krass's.

As for what you are saying about brake mode: it is not that strong. It does provide some resistance to motion, but not alot. Brake mode seems good for allowing the robot to stop on a dime, and also for helping to keep an arm stationary. Break mode may not help much in a pushing match.
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