Rusty dividing head worm? Simple DIY regrind setup in the home shop.

Just stumbled upon this video from Alex, an Austrian engineer-
who in his clean, well-kept and -equipped shop solved a problem:
He had bought a used, expensive dividing head years ago, but recently found it's worm gear inconsistent,
and while measuring finding it was in parts pretty rusty...

The guy simply decides to regrind the hardened worm in his home shop,
by dismantling his Deckel Universal grinder, remounting it on a DIY toolpost mount in his Maximat V13 lathe,
winging an external lo-speed motor to its spindle, improvicing a few odd change gears in and start grinding away...

Not affiliated - just wanted to share this guy's pure guts and down-to-earth methods.
Seems like the guy is also the designer of this: https://www.gtp13.com/
I wish I'd have just a bit of Alex's sheer luck in my own shop projects. :)

https://www.youtube.com/watch?v=3k2TbuVrB4I

For an engineer? he didn't cover his bedways for the grinding dust. But aneway an exelent job.

I would not expect a engineer to know to cover the ways when grinding.

Part two of Alex's Walther UTA Dividing Head overhaul, where he DIYes a narrow tolerance bronze worm wheel for the previously reground screw.
Bonus: How to use a full-blown https://en.wikipedia.org/wiki/Theodolite as a poor man's angular precision checker!
-Will he be able to get it better than the original specs?: app 38 minutes

https://www.youtube.com/watch?v=YkM72vveozg