Is milling your own fixture plates worth it?

[WillAdams (William Adams (Carbide 3D))]

Yes, folks have done this:

Thread Milling (in Metal) on the Shapeoko (3)

This is something I have wanted to try for about a year, and it finally made it to the top of the To Do List. [image] The price of 1/4 shank Carbide Thread Mills is crazy expensive so I decided to use my Tool Maker experience and make one from an old worn 1/4-20 tap. The goal is to remove all the teeth except ONE! It really isn’t that difficult, since you have about 12 teeth (about) to practice with. Meaning if you make a mistake, grind off the mistake, and go to the next tooth. Once you h…