I made this
Just some things I made in my machine shop.
CCW Fly cutter for use with right-hand lathe carbide tool holders. https://www.youtube.com/watch?v=jzDYecfLnZ4&t=1s
I made this heat treating oven for hardening steel.
Temperature controller with ramping and sloping functions
Self made tool post indicator holder for the lathe
Tool post indicator holder for the lathe