20mm Ball Mount

Modeled after the Bulletpoint Mounting Solution's universal 20mm ball mount, I wanted to be able to mount other items to the arms. I modeled and printed two versions, the first is a pretty close copy of the metal one and the second is a just a taller version at 56mm tall (original is 36mm), with a thicker center portion at 12.5mm (original one is 10mm) for increased strength. My intention was to attach an 8 switch controller to a spare mounting arm that is attached to the dash of my Jeep. The mo