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Standardization of Auxiliary Equipment for Next Generation CNC Machining



David Odendahl, Sid Venkatesh, John L. Michaloski, Frederick M. Proctor


This paper presents the recent work of the Open Modular Architecture Control (OMAC) Machine Tool Working Group to support STEP-NC, which is a new standard for the exchange of comprehensive Computer Numerical Control (CNC) manufacturing data. Because of the myriad of CNC auxiliary equipment and countless RS274 dialects, OMAC members collaborated on a standard approach for legacy CNC program portability by defining an on-machine CNC Virtual Machine (VM) layer. We will discuss results and related issues from the use of the STEP-NC and a CNC Virtual Machine that was done in an OMAC pilot project at Boeing and NIST to handle auxiliary equipment functionality and allow portability of part programs by pushing non-standard operation onto the machine tool.
Conference Dates
October 14-17, 2008
Conference Location
Houston, TX, US
Conference Title
ISA 2008 Technical Conference


machine tool, milling, Computerized Numerical Control, open architecture, virtual machine, RS274


Odendahl, D. , Venkatesh, S. , Michaloski, J. and Proctor, F. (2008), Standardization of Auxiliary Equipment for Next Generation CNC Machining, ISA 2008 Technical Conference, Houston, TX, US, [online], (Accessed April 24, 2024)
Created October 16, 2008, Updated October 12, 2021