By definition, any machine tool can be CNC, but more often the term is relegated to machines doing subtractive manufacturing.īefore computers were readily available, machines were programmed with punch cards (AKA numerical control), which provided the specific commands that the tool would follow. The Basics of CNCĬomputer Numerical Control is defined as the automated control of machine tools (such as drills, boring bars, lathes, mills, etc.) by means of a computer. Even though there are some software companies that provide combinations of these, they each serve specific roles when working with CNC. In the world of CNC (Computer Numerical Control), there are three software elements needed to go from idea to part: CAD, CAM, and G-code.
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