[robodude03]

Originally Posted by Lowfategg

Hmm, good information about drilling a hole on the end of the crack, I have never heard about that one.

What thickness polycarb is that by the way?

The polycarb is less than a quarter inch thick. As for the crack, we had received a pretty hard blow to the back of our robot which cracked the polycarb from the drill point to the edge. The stitching is their in part to hold the polycarb ends together (reinforcement), but essentially the drilled holes are relieving the stress of the crack itself as commented above.