Q: Am I allowed to modify the VEX Motors?
Q: Am I allowed to modify the VEX Microcontroller?
Q: Am I allowed to modify the VEX RX?
Q: Am I allowed to modify the VEX TX?
Q: Am I allowed to modify the VEX _____ Sensor?
A: No, refer to <R9>. These may not be modified in any way.
Q: C’mon, I just want to do some minor tweaks to make it mount easier / look better?
A: No, referees & inspectors may think you have tampered with or enhanced these components. In the interest of fairness, NO modification of these components is allowed, per <R9>.
Q: Am I allowed to modify some of the VEX Structural or Motion components?
A: Yes, the only restrictions on part modification are listed in <R9>. As long as you are not doing one of the modifications listed you are okay.
Q: Can I drill holes in my gears?
Q: Can I cut my metal to different sizes?
Q: Can I sand down my wheels?
Q: Can I cut teeth off my gears?**
A: Yes, these modifications are not prohibited per <R9>.
Q: Can I melt down the pieces and forge / mold my own components?
A: No, this would be considered a form of attachment not provided as part of the VEX Robotics Design System, and would not be allowed per <R9>.