Build "prototype" some time ago, hence only "busines ends" of the parts are finished and rest of them looks garden engineering.
And because the cover was off I added RPM-display, big red LED display, but reading update is slow and program appears to writen by 3 years old using Basic.
My approach is slighty different compared to Sefan's construction, the mechanical idea is very much similar and rod/stop is almost 1:1 same construction - even with epoxy and release wax.
Difrerence comes in that my mill is diferent and there was even less space at the front of the spindle, I needed to make parts smaller and snag off 2 mm from casting.
Instead of DTI I put cheap scale on the side, seems to work fine.
Pekka