Question on 3 inch perimeter rule

[GaryVoshol]

Originally Posted by Leav

step 2) ball may not enter more than 3" into frame perimeter, when viewed from the top. (i.e. may not enter more than 3" into the projection of the frame perimeter to any surface parallel to the floor)

<R19> ROBOTS must be designed so that in normal operation BALLS cannot extend more than 3 inches inside the FRAME PERIMETER below the level of the BUMPER ZONE.

(emphasis mine)

But

<G46> BALL Penetration Restriction – The BALL must not extend more than 3 inches inside the FRAME PERIMETER as defined in Rule <R19>. Violation: PENALTY for a basic infraction, plus a YELLOW CARD if no immediate attempt to remedy.

They really should have repeated "below the BUMPER ZONE" here, instead of just referencing <R19>.

Nevertheless, this is the way it has to be interpreted. Else, whenever an airborne ball went above your robot, you'd be in violation.