As long as your 3D printed part is interacting with a part from the VEX catalog, it is a legal entry. This entry would be disqualified if the spring was from an outside source, and not a VEX part from the catalog. You must include the VEX part number for the spring in the Final Report requirement.
As long as your 3D printed part is interacting with a part from the VEX catalog, it is a legal entry. This entry would be disqualified if the spring was from an outside source, and not a VEX part from the catalog. You must include the VEX part number for the spring in the Final Report requirement.