For this years Christmas project I was faced with the problem of accurately drilling into the corner of a cube. This 3 ball jig did the job.
https://youtu.be/RFv-s6d06Wg?si=64g3nQfJKFG0OhNJ
Traditionally these blocks are made on a lathe, I decided to make them on the mill. The challenge was to design a single tool that performed two operations.
https://youtu.be/wjSwfSNQYXs?si=r2XoDTgUctrYYyn2

