NC – Numeric Controlled and CNC – Computer Numeric Controlled Machines differ in these ways :
- The difference between NC and CNC is one of age and
capability. NC is older compared to CNC - The earliest NC machines performed limited functions
and movements controlled by punched tape or punch
cards. - As the technology evolved, the machines were equipped
with increasingly powerful microprocessors (computers)
with the addition of these computers, NC machines
become CNC machines. - CNC machines have far more capability than their
predecessor. - Some of the enhancements that came along with CNC
include: Canned Cycles, Sub Programming, Cutter
Compensation, Work coordinates, Coordinate system
rotation, automatic corner rounding, chamfering, and Baseline interpolation.