CNC (Computerized Numerical Control) is the operation of a machine through a computer. A CNC machine processes a piece of material (metal, plastic, wood, ceramic, or composite material) to meet specifications by following a coded programmed instruction and without manual intervention. They operate automatically, using programming codes generated by suitable software. They are distinguished for their very high performance in terms of processing speed and the quality of the final product, due to their high precision. These advantages make them ideal tools for mass production.

CNC machines can be used as lathes, mills, 3D printers, laser cutters, etc. CNC systems are used for any process that can be described as movement and operation. These include laser cutting, ultrasonic welding, flame and plasma cutting, bending, drilling, welding, fabric cutting, sewing, tape and fiber placement, assembly, and more.

CNC machines use specialized tools (mills, carbides, diamonds, etc.) to cut, drill, engrave, or polish any type of material to shape a desired object (subtractive manufacturing method). Main material removal applications: CNC machines are ideal for 3D surface machining, mold making, prototyping, 2D and 3D CNC carving, woodworking, plastic processing, and metal machining.