Tristan already brought up
some good points as how the definition of coordinate systems affects what is "relative to the robot".
IMHO, simplest way to word the volume restriction rule would be to state that:
Quote:
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Originally Posted by Potential way for FIRST to reword this update to make it clearer
The robot must fit into a Ø54" x 60"/84" cylinder at all times.
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Such wording would not include any limitations as to how you define the orientation of your cylinder. A good way to visualize this is using a giant bucket test.
Basically, at any given point in time, your robot must be able to be dropped into a giant virtual bucket that's Ø54" x 60"/84". As long as it can fit inside this bucket in some orientation, it's a legal configuration.
Much simpler for people to comprehend, and it does not negatively affect teams who based their designs on the pre 2013-01-15 update rulings.