A conventional milling machine relies on manual control of its axes through handwheels and levers, requiring direct operator intervention for each movement. A computer numerical control (CNC) milling machine, in contrast, uses pre-programmed instructions to automate the cutting process. This automation allows for complex and precise machining operations with minimal human interaction during the operation itself.
Automated machining provides significant advantages over manual methods, including increased production speed, improved repeatability and accuracy, and the ability to create intricate designs. This shift from manual to computer-controlled machining represents a pivotal advancement in manufacturing, enabling greater efficiency and complexity in produced parts. The evolution has spurred innovation across diverse sectors, from aerospace to automotive and consumer goods, impacting design possibilities and production scales.