B-1 Arm socket cap

I didn't want to use magnets to hold the arms onto Battle Droid 400! These caps hold the outside of the shoulder ball joint to the shoulder. I just glued them to the outside edge of the socket. They allow for a fair amount of movement. This is the first Thing I have ever designed or uploaded so..... it worked for me. Enjoy. Props to Ecogeeco for posting the Battle Droid 400! in the first place.