A ball joint designed to mount onto the Printrbot Simple Corner Mount. Designed with drop-in 1/4 20 hardware and simple mechanism made with M3 hardware to tighten the hold on the ball.NOTE: The ball features a cut out for a hex bolt on both ends of the part. This was only to give the user the option on how to assemble the part. You can drop a machine screw through the top and push a bolt in the bottom to lock it in place, or you can drop a hex bolt through the top. Designed by: Tommy BertkenThe Printrbot Printrn