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Unread 05-02-2011, 21:19
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GaryVoshol GaryVoshol is offline
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Re: Quick release bumper design

Quote:
Originally Posted by RRLedford View Post
I am concerned how quick release designs are not a violation of rules.

The hardware attached to the plywood can only protrude out from the plywood surface a bit more than 1/4" if it stays attached to the bumper.

So if you then declare the fancy bumper hardware is, instead, part of your robot and not part of the bumper, then they are sticking out past the outer planes the frame, which is also a violation, plus it reduces the max size of your frame.

So this seems to be a Catch-22 scenario. How is the quick release attachment H/W going to BRIDGE across both the frame and the plywood enough to strongly join them when the joining h/w can only overlap onto the frame by ~1/4"? Having only 1/4" of metal protruding from the plywood that can overlap onto the frame is not very much to work with for accomplishing an effective quick release design. Am I missing something here?

-Dick Ledford
I don't know if you're missing something, or if I am. Where did you get a 1/4" fastener rule?

Perhaps you're misinterpreting <R07-L>:
Quote:
L. “Hard” parts of the BUMPER (i.e. plywood backing, fastening system, and clamping angles) may extend up to a maximum of 1” beyond the FRAME PERIMETER. “Soft” parts of the BUMPERS (i.e. pool noodles and cloth covering) may extend up to 3½” beyond the FRAME PERIMETER.
The "hard parts" can only extend up to 1" outside the frame. There is no restriction on how far inside the frame they can extend.
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