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Re: Pushing down the bridge
In San Diego, we were originally having issues with our ramp lowerer -- which was van door motor direct drive. After adding a combination of weight, angle, and robot velocity during the match we were able to force the ramp down. When hitting the ramp, the appendage would get pushed up by the ramp typically.
If I were to rebuild it, I would probably go with the FP+gearbox or window motor to take advantage of the (locking) worm gear in combination with the angle on the appendage to slide the ramp down as the robot moves forward into it.
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My FIRST legacy:
Team 204 Student 2001, 2002 (Voorhees, NJ)
Team 1493 College Mentor 2006 - 2008 (Troy, NY)
Team 2150 Intern/Professional Mentor 2007, 2009 (Palos Verdes)
Team 4123 Lead Engineering Mentor 2012 (Bellflower, CA)
Team 4276 Engineering Mentor 2012-2016 (Huntington Beach, CA)
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Bottom line: I would suggest that you walk a mile in our shoes and volunteer to be an inspector at your next event... - Mike Betts [more] 
05-03-2012, 00:30
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