Answered: Use of Liquid Nitrogen to Cool

[ngleitz]

Is it legal to cool motors — before and after matches during practice — using liquid nitrogen?

[Karthik]

@ngleitz

Is it legal to cool motors — before and after matches during practice — using liquid nitrogen?

No, this is not legal as it is a violation of <S1>.

@VEX Robotics Competition Nothing But Net Game Manual

<S1> If at any time the Robot operation or team actions are deemed unsafe or have damaged the Field Elements or Scoring Objects, by the determination of the referees, the offending team may be Disabled and/or Disqualified. The Robot will require re-inspection before it may again take the field.