Computer Numerical Control (CNC) is a manufacturing technology that uses pre-programmed computer software to automate and control machine tools like lathes, mills, and routers, enabling precise, complex, and repeatable production with minimal human intervention by translating digital designs (CAD) into G-code instructions for the machine. It replaces manual operation, ensuring high accuracy, consistency, and efficiency in creating parts from materials like metal, plastic, and wood. How it works Design: A part is designed using CAD (Computer-Aided Design) software, creating a digital blueprint. Programming: CAM (Computer-Aided Manufacturing) software converts the CAD model into machine-readable instructions, primarily G-code, which dictate tool paths, speeds, and movements. Execution: A microcomputer (Machine Control Unit) embedded in the machine reads the G-code and controls the machine's motors, actuators, and other components to perform tasks like cutting, drilling, or grinding. Key aspects Automation: Automates tasks previously done by skilled machinists, reducing errors and variations. Precision: Allows for extremely tight tolerances and intricate geometries. Versatility: Applicable to many tools (mills, routers, grinders, welders) and materials (metals, plastics, composites). Efficiency: Streamlines production, allowing for complex parts to be made quickly and consistently. Examples of CNC machines CNC Mills & Lathes: For shaping and turning parts. CNC Routers: For cutting intricate shapes in softer materials. Plasma cutters, Laser cutters, Waterjets: For precise cutting. 3D Printers (often CNC-based): For additive manufacturing. What is Computer Numerical Control (CNC)? | Definition From TechTarget What is computer numerical control (CNC)? Share this item with your network: Kinza Yasar, Technical Writer. David Essex, Industry ... TechTarget What is Computer Numerical Control (CNC)? - meviy USA What is CNC? Computer numerical control (CNC) means using a computer to control machines numerically. By automating machine moveme... meviy Computer numerical control - Wikipedia Computer numerical control (CNC) or CNC machining is the automated control of machine tools by a computer. It is an evolution of n...