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Re: How to build good bumpers
Another trick used to get the bumpers tight is to compress them before stapling. Some teams report using a custom device they made, but we just used our three large (10"?) c-clamps and a table top, and do one edge at a time.
Securing bumpers them with angle brackets works well, as long as you have an inch or more of bumper above the top of your frame perimeter. Mount two bolts to each side of the chassis facing up (should be easy with the KoP chassis; just use the holes already there), drop the bumpers over the robot into place, and secure with a second nut on each bolt. (Wing nuts or power nut driver recommended). Rivet nuts mounted in the frame and (captive?) bolts passing through the bumper's brackets could probably also be used for this, but we haven't tried it.
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