[Jesse Merritt] bought a manual speed controller for his router. It’s used in the CNC mill he build and he figured, why not add the ability for the computer to control the speed. The speed controller ...

Computer numeric control (CNC) is a computer-based system used to control tools such as milling machines, lathes, routers, lasers, punches, water jets, and 3D printers. For a long time, CNC equipment ...

Humans had to carry out all their machining processes by hand for centuries. Even precision tools had to be maneuvered very carefully, inch by inch, by people holding the devices personally. That all ...