19-01-2016, 12:47
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Alumni turned Mentor
AKA: Branden Gunn
 FRC #4761 Team Role: Mentor
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Join Date: Jan 2007
Rookie Year: 1996
Location: Reading, MA
Posts: 868
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Re: Bumper requirement.
Quote:
Originally Posted by cpapplefamily
R26 then states BUMPERS must be supported by the structure/frame of the ROBOT
This would mean the front C-channel must extend in from the corner >=8" correct?
How much of the vertical 5" bumper backup board must be supported by the structure/frame?
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There are many ways to support it, but the simple version is to have the channel be 8" long. There is no specific amount in the vertical direction that needs to be supported. The main point of the rule is that you can't have the end of the bumper floating in free space. A flat sheet of thin metal that covers the entire back of the bumper also wouldn't count as supported for most inspectors.
My guideline is that if the bumper was not present, you wouldn't be able to bend the frame behind it easily by hand. If you are counting on the bumper to be a structural element of your frame, then it won't pass inspection.
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Student FRC23 (1996-1999), Mentor FRC246 (2000), Mentor FRC1318 (2007-2009), Mentor FRC93 (2011), Mentor FRC2151 (2012), Mentor FRC23 (2013), Mentor FRC4761 (2014-2017)
1998 - National Chairman's Award and Woodie Flowers Award (FRC23, Mike Bastoni  ) | 2007 - PNW SF (488, 1595) | 2008 - Oregon RCA - Seattle #2 Seed, SF (488, 1696) | 2009 - Oregon #1 Seed, Winners (1983, 2635) - Seattle SF (945, 2865) - Galileo #2 Seed, SF (973, 25) | 2012 Midwest F (111, 71) | 2014 RIDE Winners (78, 125), Inspector - NEU #24, QF (3479, 3958) - NECMP #35 | 2015 Reading #11, SF (1058, 190), Inspector - RIDE #17, QF(4055, 5494), Inspector - NECMP #57 | 2016 Reading #4, SF (133, 4474), DCA, Inspector - Ride #22, SF (1735, 2067), Creativity, Inspector - NECMP #48, RCA - Archimedes
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