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Methods, Practices, and Standards for Evaluating On-Machine Touch Trigger Probing of Workpieces



Ronnie R. Fesperman Jr., Shawn P. Moylan, M A. Donmez


This paper presents work being performed by NIST to evaluate test methods prescribed by the new draft standard for determination of on-machine measuring performance of numerically controlled machine tools [1]. The measuring performance of a machining center, equipped with a strain gage style touch trigger probing module, is evaluated according to this standard in order to validate the proposed test methods and to generate a baseline set of data to be used in the development of on-machine measurement uncertainty budgets. Probing repeatability, two-dimensional (2D) and three-dimensional (3D) probing errors and errors in identifying the workpiece coordinate system (WCS) in the machine coordinate system (MCS) are evaluated and the results presented.
Proceedings Title
Proceedings of the 25th ASPE Annual Meeting
Conference Dates
October 31-November 5, 2010
Conference Location
Atlanta, GA
Conference Title
25th ASPE Annual Meeting


on-machine touch trigger probing


Fesperman, R. , Moylan, S. and Donmez, M. (2010), Methods, Practices, and Standards for Evaluating On-Machine Touch Trigger Probing of Workpieces, Proceedings of the 25th ASPE Annual Meeting, Atlanta, GA, [online], (Accessed April 14, 2024)
Created October 31, 2010, Updated February 19, 2017