[Peter Matteson]

Originally Posted by thefro526

As far as bumper construction, we made ours according to the guidelines set forth in the manual. (I know, suprise )

For attachment we made brackets out of aluminum "U" channel that could slip over our frame without much effort. From there we used 1/4" Push Pins from McMaster similar to part number 92384A036. We found that these worked excellently and almost never came loose during competition. The only drawback is that they're pretty expensive at ~$20 a piece.

We used similar pins at a similar price. Remember they are COTS though so buy them once and reuse them. We've used the same pins for 2 years now. Also the cost doesn't count toward your $3500 limit so build budget shouldn't affect your decision.