Pitching this post to any owners of the Russian RYAZAN 1M63 Lathe, which is a Soviet-era copy of an older German lathe. What sets the 1M63 apart is the fascinating taper-turning facility which you'll find on no other lathe. Although a comparative walk-in-the-park for modern CNC machinery for a manual lathe the 1M63 uses the little-known combined feeds technique for machining tapers.

Go searching for this on YouTube for instance and you'll drown in videos on all the orthodox methods and everything in between but astonishingly, nothing on the combined feed arrangement as used on the 1M63.

My request is, for any 1M63 owner out there could they please do a descriptive video explaining the features of the driven compound slide followed by the facility in action. Post the link to the video here. I am confident it will be well watched. Also, could they also post all the relevant pages from the lathe owners manual especially any exploded view diagrams showing the internal mechanism.