Stormbots cad to test serpentine drive for 2019
https://workbench.grabcad.com/workbench/projects/gc3ePorc42i9ffZ3dTgw-CKlHv2tu13w3PtbFSsDqCOxQd#/space/gcYJ_boU8iBfyzTn1pL3rhLAvEwIIsHaOVOxVS7_MbkDm7