CNC can be summarized as follow:
1. CNC machining is a method of metal fabrication in which a written code controls the machinery in the manufacturing process. This code determines everything from the movement of the cutting head and the part to the spindle speed, RPM, etc.
2. CNC machining services use reduced material manufacturing methods. This means that material is removed during the production process, as opposed to additive manufacturing (e.g. 3D printing). 3.
3. CNC stands for Computer Numerical Control. The evolution to the current state began with NC or numerical control only.
The first CNC machines were built in the 40s and 50s. These machines were based on existing tools, but with some modifications.
The motors moved according to the information input provided to them via a perforated belt. The code was typed manually into the data card.