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Unread 28-04-2015, 23:23
Oblarg Oblarg is offline
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AKA: Eli Barnett
FRC #0449 (The Blair Robot Project)
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Re: AndyMark Parts Feedback 2015

Quote:
Originally Posted by Michael Hill View Post
We ran into a couple of issues with AM parts this year. First off was shearing off the output shaft of the PG-188 when back driving it. That was not expected at all.
Had this problem last year when we used two of them, direct-driven, to actuate our roller arm (after both failed as described, we switched to pneumatics). If you look at the spec sheet, it actually does specify that this is the standard failure mode if you exceed the maximum rated torque - I was surprised, too, until I looked it up.
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Member, FRC Team 449: 2007-2010
Drive Mechanics Lead, FRC Team 449: 2009-2010
Alumnus/Technical Mentor, FRC Team 449: 2010-Present
Lead Technical Mentor, FRC Team 4464: 2012-2015
Technical Mentor, FRC Team 5830: 2015-2016