[854 bears]

I have a question about the placement of this cylinder relative to the robot. I have read through the rules a couple of times, and couldnt find anything to answer my question. What I am wondering is if this cylinder has to be centered relative to the robot base (meaning you have only 42" in all directions to expand), or whether the only requirement is that your robot must fit inside an 84" diameter cylinder (meaning you could expand 84" on one side, but not the other. Any insight or clarification is greatly appreciated.

Thank you,
Team 854