CMM-GD&T Measurement Planning

This presentation has been delivered at a number of national and international events, and based on the positive response received, Mitutoyo America Corporation wanted to make it more widely available. Many users of coordinate measuring machines (CMMs) struggle with the measurement of workpieces toleranced in accordance with ASME Y14.5 (GD&T). There is no measurement method dictated by ASME Y14.5, as this standard is for defining product requirements and is not a measurement compliance standard. Users of CMMs must consider a number of business and technical factors when planning a measurement method. This presentation introduces the topic of measurement planning and highlights the American national standard on Dimensional Measurement Planning, ASME B89.7.2. This presentation recommends organizations develop best practices for CMM use, and some examples and topics for consideration are discussed.


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The Mitutoyo Institute of Metrology provides educational courses and on-demand resources across a wide variety of measurement related topics including basic inspection techniques, principles of dimensional metrology, calibration methods and GD&T. We can be contacted via email at, via phone at 888-648-8869 (option 6), or visit the Education and Training home page.

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