Instructional videos metalworking
Operating a lathe and/or milling machine is not something you can fully master in a short course or online. A basic understanding of the terminology and backgrounds used can speed up that process, though. The conventional versions of these machines can almost be called classic, but still the basics. You need the knowledge of the conventional machines to be able to work with the modern CNC-controlled ones. That’s why there’s no wrong doing with the slightly older films on these subjects. Watch the Youtube channel Open Source Machine Tools for these ‘golden oldies’.
there are plenty of other channels to be found that cover these topics, but also look more broadly at metalworking, such as Build Something Cool.