Rigidbot 20 tooth offset belt gripper (mobius)

This is meant for keeping the belts parallel when swapping to a 20 tooth pulley on the Rigidbot. I found it a bit difficult to get the belt installed in one-piece grippers so I made one that uses screws to clamp the belt securely. M3x10 screws are recommended, 4 required per axis. The gripper must be mirrored for the Y axis.