# Arms Protruding the Bumper Zone

Our team took a look at this video and it looks as if we can have arms that protrudes the bumper area. Can someone help specify the ruling on this. Thanks

The arms they use in this video start in a stowed position, with the green wheels pointing up to the ceiling. At the beginning of the match, the robot would move in really any direction, and the arms would tilt down on the hinges that attach them. Example of them stowed here. Basically, you can start a match without arms over the bumpers, then once it starts, you can expand into the space (up to 16" out from your frame)

Rule R04 is the one you’re looking for.

33 x 28 x 55 is the “box” that defines your robot starting volume.

R03 In the STARTING CONFIGURATION, the maximum ROBOT size (excluding BUMPERS) must be constrained to a volume of 33 in. by 28 in. by 55 in. tall

As for the bumper zone its what you can wrap a string around the widest at or below 7.5"

In the Greeenhorns case that elevator is stored vertically inside thier bumper zone and below 55" at start of the game. Thats their STARTING CONFIGURATION.

During the game that elevator pops outside the Bumper Zone frame <= 16".

As a side note…for climbing it would be nice to retract that in then they could have climbed forward. If they chose too

IMO to give you some rational of their design as I see it.

The comments in the “Intake” section of the first post in this thread may be of interest to you.

It is important to note that as R02 implies, if your FRAME PERIMETER is smaller than the 33" x 28" maximum size, all mechanisms must start inside the FRAME PERIMETER of your robot anyways. A robot with a frame perimeter of 26" x 26" that has a mechanism that starts outside of this zone is in compliance with R03, but not R02.

R02. In the STARTING CONFIGURATION (the physical configuration in which a ROBOT starts a MATCH), no part of the ROBOT shall extend outside the vertical projection of the FRAME PERIMETER, with the exception of its BUMPERS and minor protrusions such as bolt heads, fastener ends, rivets, cable ties, etc.