Underfloor train wheelset lathe. 4:03 video.
https://www.youtube.com/watch?v=ThUPYo1pKmQ
Previously:
https://www.homemadetools.net/forum/...572#post147444
https://www.homemadetools.net/forum/...708#post133110
https://www.homemadetools.net/forum/...690#post178499
https://www.homemadetools.net/forum/...192#post126310
