27-04-2010, 23:19
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no bag, vex only, final destination
AKA: Pinecone
 FRC #0228 (GUS Robotics); FRC #2170 (Titanium Tomahawks) Team Role: Mentor
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Join Date: Dec 2008
Rookie Year: 2006
Location: Glastonbury, CT
Posts: 7,696
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Re: The spread of pinching rollers this year
Quote:
Originally Posted by sanddrag
Weeks were spent in the iterative design process to ensure "these sorts of things" were physically impossible with the 254/968 pinch roller design. The mechanism was on a free pivot, such that the entire robot could lift from the floor by a significant amount (more than 1" I believe) and the ball remained in contact with the ground, such that a piece of paper could not be slid beneath it. For added security, at Long Beach, 968 added springs to actually push the ball into the ground with some force, beyond the weight of itself and the mechanism. I don't feel that any team with such a mechanism got away with a certain "way" referees were calling anything.
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I was under the impression that 233 had a mechanism that oh so slightly lifted balls, and that caused them to miss elims at Florida.
I doubt refs ignored this when I've read posts about how teams were pulled to practice fields to prove balls stayed on the ground.
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