CNC Takes on All Comers

Feb. 11, 2009
CNC control of machine tools made it possible to cut a variety of complex three-dimensional shapes that were previously difficult or impossible to create. That was then. This is now. Though CNC still is the main controller of choice for machining centers, other options such as PLCs, PACs and PC-based controls are drilling into the CNC's dominance. Some proprietary control architectures are utilizing dual kernel platforms to integrate PC functions in a Windows environment, which some developers prefer because it's easier to use and program.

CNC control of machine tools made it possible to cut a variety of complex three-dimensional shapes that were previously difficult or impossible to create. That was then. This is now. Though CNC still is the main controller of choice for machining centers, other options such as PLCs, PACs and PC-based controls are drilling into the CNC's dominance.

Some proprietary control architectures are utilizing dual kernel platforms to integrate PC functions in a Windows environment, which some developers prefer because it's easier to use and program.

Standard PC or PLC controls can be expanded by integrating dedicated CNC controls into software, as well. This, in theory, eliminates the need for a CNC controller and allows the builder to use the same hardware for control, visualization and motion.

Most machine builders agree there’s no definitive substitute for CNC, but in those applications that require both CNC and PLC for different control applications, a combined platform can mean significant cost savings in training and spare-parts inventory.

Finally, if a PAC has the essentials for CNC tool compensation and interpolation built-in, a typical NC program can be executed. So is there really any limit to the options available? Or is the controller choice a slave to the application.

About the Author

Mike Bacidore | Editor in Chief

Mike Bacidore is chief editor of Control Design and has been an integral part of the Endeavor Business Media editorial team since 2007. Previously, he was editorial director at Hughes Communications and a portfolio manager of the human resources and labor law areas at Wolters Kluwer. Bacidore holds a BA from the University of Illinois and an MBA from Lake Forest Graduate School of Management. He is an award-winning columnist, earning multiple regional and national awards from the American Society of Business Publication Editors. He may be reached at [email protected] 

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