In order to open assembly and drawing files, download all assembly and part files to the same folder as the assembly drawing you are trying to open.
Upper Level Assembly: Dolphin Rig.SLDASM
Structural Rig Assembly: 8020 rig.SLDASM
Biteplate Assembly: pvc and biteplate.SLDASM
Biteplate Part File (Autonomous): biteplate Julia.SLDPRT
Biteplate Part File (Manual): biteplate simple.SLDPRT
Compression Plate Part File: compression plate.SLDPRT