Installing a Digital Readout

A project log for Rockwell Milling Machine Rebuild

Rebuilding a Rockwell 21-122 Horizontal/Vertical Milling Machine

polyfractalpolyfractal 05/17/2018 at 20:490 Comments

I recently added a digital readout to the mill.  A few hiccups along the way, but overall the installation went very well.  The DRO is a kit from TouchDRO.  Ordered the PCB and components, soldered it up and fabricated some mounts for cheap Shars scales.

After calibration, the DRO reads +/- 1.5 thousandths of an inch, which is right about the tolerance of the scales according to the manufacturer.