CNC is short for computer numerical control, which is an automated machine that cuts materials by a 3D milling machine. CNC machining produces parts with a level of precision that a conventional milling machine would not be able to provide. CNC can make complex shapes and consistent surface finishes out of hard metals such as aluminum and steel, among others
CNC machines are also useful for large-scale applications where it's difficult or expensive to use conventional methods. For instance, the US military uses CNC technology to manufacture aircraft parts and other large structures at its facilities in Alabama, Georgia, New Jersey and Virginia
CNC machining has become more popular in recent years because it offers greater flexibility than conventional machining methods like milling or drilling. It also allows you to create custom parts that aren't possible with conventional methods 〞 for example, if there's a gap between two pieces of metal (like in a robot arm), CNC can fill this gap with no additional work required on your part's design process
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