#REDIRECT [[ it:Computer numerical control]] ▼
shorten long programs with incremental or stepped passes. A loop can be created with variables for step values and other parameters, and in doing so remove a large amount of repetition in the program body. u like bum
Because of these features, a parametric program is more efficient than using CAD/CAM software for large part runs. The brevity of the program allows the CNC programmer to rapidly make performance adjustments to looped commands, and tailor the program to the machine it is running on. Tool wear, breakage, and other system parameters can be accessed and changed directly in the program, allowing extensions and modifications to the functionality of a machine beyond what a manufacturer envisioned.
==Tools with CNC variants==
* [[Drill]]s
* [[Electrical discharge machining|EDM]]s
* [[Lathe (tool)|Lathe]]s
* [[Milling machine]]s
* [[CNC wood router|Wood router]]s
* [[Sheet metal|Sheet metal work]]s(Turret Punch)
* Wire bending machines
* [[Hot-wire foam cutter]]s
* [[Plasma cutting]]s
* [[Water jet cutter]]s
* [[Laser cutting]]
* [[Oxy-fuel welding and cutting|Oxy-fuel]]
* [[Surface grinder]]s
* [[Cylindrical grinder]]s
==See also==
*[[Computer-aided design]] (CAD)
*[[Computer-aided engineering]] (CAE)
*[[Computer-aided manufacturing]] (CAM)
*[[G-code]]
*[[STEP-NC]]
*[[Numerical control]]
*[[Machine tool]]
*[[Tooling University]] (offers online CNC training classes)
*[[Coordinate-measuring machine]] (CMM)
*[[Robert C. Byrd Institute]] CNC training and education.
*[[Direct Numerical Control]] DNC
*[[Configurable Network Computing]] JDEdwards CNC Administrator
*[[intelitek]] Developers of Educational CNC systems
*[[F1 In Schools]] F1 in Schools Technology Challenge
*[[Design_for_Manufacturability_for_CNC_machining]]
*[[Multi Spindle CnC Machines]]
== References ==
{{Unreferenced|date=October 2008}}
==External links==
{{commonscat}}
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*[http://www.linuxcnc.org The Enhanced Machine Controller], opensource CNC control software
*[http://mync.sourceforge.net MyNC Numerical Control System], opensource CNC software
{{Metalworking - CNC, CAD, and CAM}}
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