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nc is numerical control
cnc is computer numerical control
nc came before cnc in the form of tape reading machines in which the tape was punched with holes to indicate positions.
cnc began when microprocessors were used to interpret the data and it was stored digitally rather than in tapes.
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∙ 14y ago
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What is the difFerence between nc and cnc?
NC is numerically controlled (hard wired) and CNC is computer numerically controlled.
What is the difference between nc machining and cnc machining?
Re: Difference between CNC & NC machinesIn a Numerical Control machine, the program is fed to the machine through magnetic tapes or other such media. The original NC machines were essentially basic machine tools which were modified to have motors for movement along the axes. In a Computer Numerical Controlled machine, the machines are interfaced with computers. This makes them more versatile in the sense that, suppose a change in dimension of a part is required. In a NC machine, you would have had to change the program in the tape and then feed it to the machine again. But in a CNC machine, you just change a variable in the computer and your modification is done!!
What are the 2 classes of CNC screw machining?
The 2 classes of CNC screw machining are mechanical and NC. You can read about this distinction at en.wikipedia.org/wiki/Screw_machine
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