[GaryVoshol]

If you align the virtual 72x72 box along a diagonal, you can be significantly longer than 72 inches. A trivially thin robot could be almost 102 inches long and fit on the diagonal of the virtual box. With a 34" wide robot (28" starting max plus bumpers) your robot could stretch nearly 85 inches from back bumper to extreme arm extension and still fit in the virtual box - about 40 inches outside your starting volume.