Hey Karthik, is it legal to make custom internal gears for Vex U using the legal materials (3d printed plastic, aluminum/steel sheet, plastic sheet, plastic block)? Does this also extend to the replacement of the 11-48 and 12-49 gears accessable through the green back plate?
According to
from this Q&A, you may put “something else” in place of the standard gear
Q&A from Skyrise: Answered: VEX U - Internal motor gearing - VRC > Skyrise (14/15) - VEX Forum
from this Q&A, you may build off the motor housing as long as it’s solely a mechanical change
Answered: VEX U: Removing Motors From Housings - VRC > Nothing But Net (15/16) - VEX Forum
if it is illegal to make custom internal gears, can you replace the green back plate of the motor and connect custom gears and mounts to the motor pinion?