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Computer Numerical Control (CNC), and refers specifically to the computer "controller" of that reads the G-code instructions and drives the machine tool .
The introduction of CNC machines radically changed the manufacturing industry. Curves are as easy to cut as straight lines, complex 3-D structures are relatively easy to produce, and the number of machining steps that required human action have been dramatically reduced.
With the increased automation of manufacturing processes with CNC machining , considerable improvements in consistency and quality for part features have been achieved. CNC automation reduced the frequency of errors and provided CNC machinist with time to perform additional tasks. CNC automation also allows for more flexibility in the way parts are held in the manufacturing process and the time required to change the machine to produce different components.
Additional advantages include the importation of computer aided design (CAD) 3D models for programming the CNC g-code. By using the accurate 3D CAD models, CNC machining programming and trouble shooting task labor costs have been dramatically reduced.
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