[Whippet]

Originally Posted by TheMadCADer

The way I understand it, you could make every robot compliant with R26 by putting a string all the way around the Frame Perimeter.

The string is now your Frame Perimeter. There are no gaps at all in the frame perimeter, so you don't need to worry about the 8" gaps or 1/2" edge gaps, and the 1/4" gap doesn't come into play either. There is nothing about structural integrity in their definition of "supported".

Originally Posted by Rule R2

The ROBOT must have a FRAME PERIMETER, contained within the BUMPER ZONE, that is comprised of fixed, non-articulated structural elements of the ROBOT. Minor protrusions no greater than 1⁄4 in. such as bolt heads, fastener ends, and rivets are not considered part of the FRAME PERIMETER.

(Emphasis mine.)

I would't consider a string to be structural element. However, if they put something like churro tube on it at the corners, it would probably be rigid enough to be considered structural.