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Unread 08-02-2014, 16:58
jvriezen jvriezen is offline
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FRC #3184 (Burnsville Blaze)
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Re: Non-sagging Bumpers Q&A Response

Quote:
Originally Posted by Siri View Post
Emphasis mine. Just to be clear, are you agreeing this is legal? Given that robust mounting is legally required, is there something against steel or largeness? We use steel to secure our brackets to the wood.
In 2012, at the recommendation of a Lead Robot Inspector/Mentor on our team we used a steel plate-- about 28" x ~3" bent into a 'J' shape that ran the length of the bumper and engaged our frame member. It passed inspections at regionals. This included an inspector named Al, who you might be familiar with The entire length of the steel was part of making a very robust attachment system.

But adding steel (or any other material) with no purpose other than adding weight or strengthening the bumper plywood would be a no no, I believe. The method we used had the primary purpose of attachment to frame, and it incidentally added weight and bumper rigidity.
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John Vriezen
FRC, Mentor, Inspector #3184 2016- #4859 2015, #2530 2010-2014 FTC Mentor, Inspector #7152 2013-14