Thank you for making this. My dad(now retired) owned a machine tool manufacturing space in the 70s and 80s in a small town in north india. After foreign CNC machines left no demand for manual/semi automatic ones in the country, he switched over to a foundry to manufacture cast iron parts in a blast cupola furnace and later a rotary furnace(better for smaller on demand work). But he kept the lathe around along with an employee to finish the parts. And your animation brings back a lot of memories for me. I learned to operate the lathe and had all manners of fun. It is kind of like yak shaving. Your clothes turn black but you just love the mechanical back and forth of it. He made pulleys, Truck engine parts, housing for water motors(fun fact municipal water is scarce and not of adequate pressurized in homes, farms, factories etc so these are ubiquitous) etc.

I sent this to my dad. I am sure he will enjoy reading this.