Watchmaking machine.
https://www.youtube.com/watch?v=sJ5Avvs_wHU
Previously:
https://www.homemadetools.net/forum/...506#post151260
https://www.homemadetools.net/forum/...434#post142687
https://www.homemadetools.net/forum/...061#post141008
https://www.homemadetools.net/forum/...155#post126096
https://www.homemadetools.net/forum/...999#post103073
