elbow magnet
thingiverse
Check out this patent online: US5929732. That should give us the information we need to get things moving forward. Now, let's focus on finding an external magnet that can print our design. I recommend purchasing a spherical magnet as it will provide us with the flexibility we need to move in any direction.
Download Model from thingiverse
With this file you will be able to print elbow magnet 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 elbow magnet.