Hi I was wondering if we can use some 3D printed pieces on the robot like this battery holder below. That piece is not a active functioning mechanism on the robot. So, can we consider it like an electrical tape? https://www.thingiverse.com/thing:275299 My second question is as you know ordering from vex sales takes too much time and we didn't have enough time to order a VEXnet Backup Battery Holder. So I have ordered some 9 volt battery clips and modified with a 2 pins connector. It is functioning properly on the robot but is that allowed to as well? Thanks.
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Official Q&A: VRC 2018-2019: Turning Point
224: is 3D printed parts are allowed?
Answered by Game Design Committee
The only permissible non-VEX components in the VEX Robotics Competition are detailed in <R7>. The parts you have described are not included in this list, and would also not be considered non-functional decorations under <R8>. Thus, they would not be legal.