Bumper dimension doubt

[stoddard]

But are the rules talking about the sides of the frame perimeter or sides of the corner. (Typically 4 sides on a robot, but 2 on a corner of it.)

[GeeTwo]

Originally Posted by stoddard

But are the rules talking about the sides of the frame perimeter or sides of the corner. (Typically 4 sides on a robot, but 2 on a corner of it.)

They're still the same sides. Each side is between two corners and each corner is adjacent to two sides.

[Al Skierkiewicz]

Bumpers are evaluated with respect to the corners of the FRAME PERIMETER. In the drawing above, there are four corners and each corner must have 8" of bumper on each side of the corner. If the side of the robot was less than 8" long, the entire side must be covered in bumper. The bumper is evaluated for length by measuring the backing board from the corner of the frame.
Please see the lower left drawing in Fig. 4-3 of the robot rules.