Quorn Alignment Jig

thingiverse

When using Professor Chaddock's Quorn design, you frequently have to align the spindle with the ways. To make this process faster, I created a jig that clamps to the back way and provides a flat, vertical surface parallel to the ways and aligned with where the spindle should be. The reference surface should be printed on the bed for easy alignment. Once it's printed, you need to ensure the V-block surfaces are correctly aligned by installing the test cylinder in the spindle taper and aligning it with the ways using a dial indicator. Then, install the jig on the back rail and check which end of the test cylinder it touches on. Next, file the V-block face that needs adjustment until the reference face touches on both ends of the test cylinder. After alignment is complete, you can quickly align the spindle within 0.002" over 3" of travel on the ways in just a few seconds, thanks to this jig.