FRCTools

R404       *BUMPERS must be soft. Hard parts of BUMPERS must not extend more than 1 ¼ in. (~31 mm) 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 in. (~51 mm) beyond any hard parts of the BUMPER.

Hard parts include any items which are likely to cause damage to the cloth or padding of other BUMPERS such as nuts and bolts, cable ties, hard plastics, etc.

Similar Rules

Rule R405
R405       *BUMPERS interact with BUMPERS. All BUMPERS must have padding (per R402-A) supported by backing (per R402-B) entirely filling the BUMPER ZONE, a space between 2 ½ in. (~63 mm) and 5 ¾ in. (~146 mm) from the floor.
Rule R402
R402       *BUMPER construction. BUMPERS must consist of the following:
Rule R406
R406       *Fill BUMPER corners. Corner joints between BUMPERS must be filled with uncompressed padding material extending at least 2 ¼ in. (~58 mm) from the corner with no gaps or voids. Examples of implementation are shown in Figure 8‑7.
Rule R401
R401       *BUMPERS all around. ROBOTS are required to use BUMPERS to protect the entire ROBOT PERIMETER. Gaps of less than 1 ¼ in. (~31 mm) between adjacent segments are permitted as long as all corners are filled per R406.
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