pic: Storm Robotics Team, FRC2729 - 2010 Breakaway Robot

[EricH]

The C-channel is fine, but how are you going to get a fully supported bumper along that frame perimeter? On the front, it looks like you'll be fine. On the sides, there's a pretty substantial space where the frame isn't the frame perimeter, but about 1/8" or 1/16" inside. I'd suggest putting a shim in along there to bring the frame out to the perimeter.

[mwsmith78]

EricH,

I see your point ...

M. The entire length of the BUMPER backing must be supported by the structure/frame of the ROBOT (i.e. the backing material must not be in “free space” between or beyond attachment points) (see Figure 8 – 3).

When I first read this rule I interpreted it as large gaps in the frame. But, I guess the 1/16-1/8" gap that we have due to screw heads would also count against this.

We will have to take some shims (as you suggest) to our competition. Thanks for the feedback.

Matt