20-10-2010, 10:28 AM
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NC and CNC machines and Control Programming
History of CNC
1949
US Air Force asks MIT to develop a "numerically controlled" machine.
1952
Prototype NC machine demonstrated (punched tape input)
1980-
CNC machines (computer used to page link directly to controller)
1990-
DNC: external computer “drip feeds” control programmer to machine tool controller
