Are we allowed to 3D print Vex bevel gears for the competition? Vex doesn't sell the gears individually only as part of a separate gears kit. Does rule R7 B cover us printing the bevel gears?
You would not be covered by R7-b. That rule states that it must be identical in all ways except color. It is not possible to meet this criteria with a 3D printed part since the manufacturing methods are different enough that the parts would not be identical. There have also been several Q&As in past seasons that have addressed this question, though I can't seem to find them at the moment.