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Originally Posted by IKE
As others have said, it really depends on it is used. You are allowed to use metal to help capture the fabric. You are allowed to use metal "brackets". As inspectors, we do not have stringent guidelines on what consitutes a "bracket". If you would like me to take a look at something, send me an email with a picture and I can give you a better assessment.
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Just to elaborate on what IKE was saying, here's R23:
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Originally Posted by R23
Each set of BUMPERS (including any fasteners and/or structures that attach them to the ROBOT) must weigh no more than 20 lbs.
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Quote:
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Originally Posted by Blue Box Under R23
If a multi-part attachment system is utilized (e.g. interlocking brackets on the ROBOT and the BUMPER), then the elements permanently attached to the ROBOT will be considered part of the ROBOT, and the elements attached to the BUMPERS will be considered part of the BUMPER. Each element must satisfy all applicable rules for the relevant system.
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As I see it, there's no reason that you couldn't run a steel bracket the length of the bumper. Think something like a steel angle, connected to the bumpers on one leg, with holes to connect to the chassis on the other. It's a legitimate attachment method, just a bit (a lot) overkill. I doubt anyone will hassle you about it if your bumpers are under 20lbs and don't violate any other rules.