Ball Lock
thingiverse
People see a 3-piece sphere that's really made up of six identical parts. The instructions ask you to print all the pieces without creating any overhangs. I used my Makerbot printer, set to print with 0.2mm layer height. Printing at such a high level helps the assembly come together smoothly. You can find more design ideas in this Instructables: http://www.instructables.com/
Download Model from thingiverse
With this file you will be able to print Ball Lock with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Ball Lock.