the 72" x 72" box

[FRC2083]

There was a question tat came up in our mechanical team and we were stumped on how far the arm can reach outside the robot. Outside the robot as in how far away from the robot chassie is the mechanical arm aloud to reach.
-Thank you, Team 2083

[FRC1700]

Hi, this is 1700 and we are wondering if the 72" x 72" box that the robot must not exceed refers to the footprint (as in the part of the robot touching the floor must not exceed 72" x 72") or the entire robot (as in any part of the robot, regardless of height)?

For example, if we have an arm that extends beyond 72", but does not touch the ground, is that within regulation?

Thank You!

[FRC8]

Since the new team updates spells penalties and potential disqualifications for a team whose robot break R12, I'd like to know if the conclusion reached here (http://www.chiefdelphi.com/forums/sh...6&postcount=26) is indeed the right one, and hence, for a team whose robot's long dimension is about 38", the maximum arm length (from the point in which it breaks the plane of the front of the robot) is in fact about 49". Is that correct?

Thank you,
Guy Davidson,
FRC8

[FRC1178]

Related to Rule <R12>
The rule states that your robot must be within a 72 inch X 72 inch footprint. Does this mean that there is an imaginary "box" that is 72 inches X 72 inches by no limit for height that we must always remain inside? For example if we had an appendage that swung through the imaginary box for a small portion of time without touching the ground, would we be in violation?

[FRC292]

Say we have an 8' (96") articulated arm. In the starting position it stays within the 28 X 38 foot print. When we have the arm in the extended horizontal position the end of the arm would be out 106" from the back of the robot. Does the arm in extended position violate <R12> the 72 X 72 rule? Yes or No.

[GDC]

The purpose of Rule <R12> is to define a 72 inch wide x 72 inch deep x infinite height (save as may be practically limited by the venue ceiling height) three-dimensional box. When the ROBOT is not in the HOME ZONE, it must maintain a configuration that will allow it to fit within this virtual box at all times. The virtual box moves with the ROBOT, and the ROBOT may be oriented within the virtual box in any direction. But if any part of the ROBOT, at any height, ever extends outside of the virtual box while the ROBOT is not in the HOME ZONE it will be considered a violation of Rule <R12>. There is no case in which an object measuring greater than 102" horizontally will fit within the 72 x 72 inch limits specified. Any such device will violate the rule if it is used outside the Home Zone.

[FRC1606]

<R12> States that while the robot is outside its home zone it may expand up to 72 inches in depth. We use an arm to lift the rings, and the arm plus robot base may sometimes exceed 72 inches temporarily as the arm raises or lowers. Does this violate <R12>?

[GDC]

The prior answer still applies.