Okay, Pops used to have a couple small metal lathes and a decent shop that traveled around the world. I used to play around with it, and made a couple little steam engines plus I got to play with big league equipment in lower division ME shop classes. I know my way around machinery. But I'm rusty. You see what I did there. I don't have much space. I can set up something semi permanent, but I would like to end up with a setup that allows me to machine small things. Not an @Ted DuPuis Cobra differential, but a reasonably priced setup as to where I can have metal lathe and milling capabilties, making, say, little engines and (I hate the word) whatnot. Maybe I can machine a replacement part in my bike that broke or upgrade it. I have like... a small corner in a garage to play with. That's it. Think about a machine shop in a submarine. Or on the ISS. I do not think there is a machine shop in the ISS. But I wouldn't be surprised if submarines have them. Ships do.