Design files for this project can be found here

Here’s another small project I did a while back. The chuck spanner for the Roland MDX-540 in the Garage went missing, and without it the entire machine was out of commission as there was no way of tightening the lock nuts on the tool holders for the end mills. Rather than order and wait for a replacement spanner, I decided to model up and mill out a replacement on a Tormach PCNC 770.

Results were great, but I did hit some alignment issues on the Y-axis which resulted in a small ridge running along the side of spanner. Lesson learned: check both the Y-origin as well as the X-origin after flipping the stock in the vise, the Y-axis origin may vary by up to a few thousands of an inch.