The process of CNC Machining is when the machining tool operation is automated by pre-programmed software. CNC stands for “Computer Numerical Control” which means, the complex machining and tool movement such as speed, coordination and rate in which the part is fed into the machine is all controlled by software. CAD professionals design and draw up the part in the CAD program and then the machine carries out the repetitive movements rather than human operators so that consistent and precise parts production can be accomplished.