The comparison between CNC and conventional system?

Repeatability on a conventional machine relies on the skill of the operator

and the quality of the machine.

A programmed CNC machine will exactly repeat complete requirements

for machining a given component to a very high degree of accuracy,

usually 0.0008 mm.

This can then be stored in the machine's computer memory or on a tape

or disc etc, which can then be used to repeat the exact machining cycle at a

later date.

The construction of a CNC machine is much stronger, more rigid, and will

Repeatability on a conventional machine relies on the skill of the operator

and the quality of the machine.

A programmed CNC machine will exactly repeat complete requirements

for machining a given component to a very high degree of accuracy,

usually 0.0008 mm.

This can then be stored in the machine's computer memory or on a tape

or disc etc, which can then be used to repeat the exact machining cycle at a

later date.

The construction of a CNC machine is much stronger, more rigid, and will

vibrate less than a conventionalmachine.

The accuracy of machining with a conventional machine tool is dependent on

the ability of an operator to read the dials or indicator scales correctly, and to

take account of any backlash when manually adjusting the position of the cut,

feed etc.