R407       *BUMPERS shouldn’t be wedges. BUMPERS must not act as wedges when interacting with other BUMPERS.

R405       *BUMPERS interact with BUMPERS. While navigating the FIELD normally, all BUMPERS must have padding (per R402-A) supported by backing (per R402-B) entirely filling the BUMPER ZONE, a space between 2.5in (6.35cm) and 5.75in (14.61cm) from the floor.

R403       *BUMPER extension limit. BUMPERS must not extend more than 4.0in (10.16cm) from the ROBOT PERIMETER.

R410       *BUMPERS must come off. BUMPERS must be designed for installation and removal to facilitate inspection and weighing.