FRCTools

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

Examples of BUMPERS which might act as a wedge, and may invite additional scrutiny, include:

A.      BUMPERS utilizing softer foam towards the top of a BUMPER profile,

B.      BUMPERS utilizing excessively rounded profiles such as a single semi-circle, and

C.      BUMPERS with tapered or stepped padding such that the padding is thinner or thicker towards the top or bottom.

Similar Rules

Rule R409
R409       *BUMPERS should be passive. BUMPERS must be fixed relative to the ROBOT PERIMETER. BUMPERS may not contain any elements which move during the MATCH or electrical elements.
Rule R404
R404       *BUMPERS must be soft. Hard parts of BUMPERS must not extend more than 1.25in (3.17cm) out from the ROBOT PERIMETER. Only padding (per R402-A), cover (per R402-C, including any coatings or markings), and soft fasteners used to secure padding or cover are permitted beyond this limit. Padding must extend at least 2.0in (5.08cm) beyond any hard parts of the BUMPER. There is no limit on how far BUMPER hard parts may extend inside the ROBOT PERIMETER.
Rule R408
R408       *Weight limit with BUMPERS. The total weight of the ROBOT (as described in R103) with BUMPERS must not exceed 135.0lb (61.23kg)
Rule R410
R410       *BUMPERS must come off. BUMPERS must be designed for installation and removal to facilitate inspection and weighing.