The guys from the YouTube channel How To Make Everything have been looking at one such sketch, a screw thread-cutting machine. At first glance, it seems a little flawed. Threads are hard to make ...

It can switch between up to 10 attachments to cut, grind, and hammer. The machine has over 2,000 designs in-built or custom patterns can be programmed. The Ringmaker is a CNC machine created by ...