In a prior question, there was clarification about robots "settling" after hanging (still rocking and intermittently touching floor after the buzzer, but ultimately hanging). What about a robot that can hang but requires driver/controller assistance such that when the controller is placed on the ground after the buzzer, the robot will fall back down (motor does not hold it in place in neutral position).
The Q&A is closed for the 2021-2022 season. Any rule changes or clarifications pertaining to the 2022 VEX Robotics World Championship will be included in the April 5 Game Manual Update. Teams attending VEX Worlds who wish to pre-submit questions for the driver's meeting should have received a contact form via email; if not, please contact your REC Foundation Team Engagement Manager for more information.
Official Q&A: VIQC 2021-2022: Pitching In
Hangs requiring driver control
Answered by committee
Rule G12 reads as follows, with a portion bolded for emphasis:
<G12> When it’s over, it’s over. Scores will be calculated for all Matches immediately after the Match is complete, and once all Robots and Balls on the Field come to rest.
a. Referees or other event staff are not allowed to review any videos or pictures from the Match, per <T1b>.
b. If there is a concern regarding the score of a Match, a Driver from that Match (not an Adult), may discuss the score with the Head Referee. See <T2> for more details.
c. This rule’s intent is for Driver inputs and Robot motion to cease at the end of the Match. A pre-programmed routine which causes the Robot to continue moving after the end of the Match would violate the spirit of this rule. Any Scoring which takes place after the Match due to Robots continuing to move will not count.
Note: Using a motor’s built-in “Hold” function, such as to remain Hanging, is permissible.
Therefore, the scenario described in this question would not be legal, as it involves continued Driver input past the end of the Match. However, pressing a button to use a "Hold" function (or similar) would be permissible.