[Al Skierkiewicz]

Under no circumstances can you have less than 8" of frame on either side of an exterior corner. An opening in the Frame Perimeter that does not create an exterior corner (use the string analogy for determining Frame Perimeter and exterior corners) does not require a bumper if the exterior corner minimum is satisfied. In my example, if a team designed a 15" opening in the side of the robot that is 28" long, there will not be 8" of frame on each side of the exterior corners.
The highlight is added to remind teams that the frame is where the 8" dimension is determined. This was a source of confusion in the past and the bumper rule this year and the accompanying drawings should make this point clear.