84 inch diameter vertical right cylindrical volume ?

[MrForbes]

Originally Posted by Matthew2c4u

When the last 20 seconds of the game are in effect, you cant be outside that size cylinder.

During the last 20 seconds of the game, but also during the rest of the game if your robot is in contact with the TOWER. So you can get a head start if you need more than 20 seconds, is my guess.

<G30> ROBOT Volume – During a MATCH, no part of the ROBOT shall extend outside the vertical projection of the FRAME PERIMETER, except as follows:

c. TOWER Contact ROBOT Volume - During a MATCH, ROBOTS in contact with their ALLIANCE TOWER may extend beyond their NORMAL CONFIGURATION volume but may not exceed the FINALE CONFIGURATION maximum volume.