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Unread 12-05-2016, 00:40
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Re: Best methods of bumper mounting?

Quote:
Originally Posted by sanddrag View Post
I'm a little concerned about rule R21-G with some of the things mentioned in this thread. Perhaps I'm misinterpreting the rule. The picture seems to paint a pretty clear limitation of a 1" limit on hard parts. The 1" limit in the picture is placed over the inside and outside surfaces of the bumper plywood. Many great attachment methods need more than the remaining 1/4" inside the plywood after using 3/4" plywood, thereby seemingly exceeding this 1" hard parts limit.

What am I missing here?

Is there not actually any limit to how far the "hard parts" can stick inside your robot? Can someone point me to some rule or clarification that indicates this?
Quote:
Originally Posted by R21-B
B. hard BUMPER parts allowed per R21-A, R21-E, R21-F, and R21-G must not extend more than 1 in. beyond the FRAME PERIMETER with the exception of minor protrusions such as bolt heads, fastener ends, rivets, etc (Figure 4-5 and Figure 4-7).
emphasis mine.
Seems pretty clear to me. The 1" is counted from the frame perimeter.

I guess bumper attachment system can be ridiculously huge then, but at some point the bumpers will hit the 15lb limit.
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