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  1. GCalin

    Understanding datum displacement

    A interesting way to visualize the tolerances ranges with the sleeve gage example. Thank you for pointing this out Axym. I have to get a full copy of the ASME Y14.5 std. Most my references are bits and pieces from different sources.
  2. GCalin

    Understanding datum displacement

    Thank you for the explanation. This is trickier than I thought. In my (very limited) GD&T understanding, modifiers applied to datum would never bonus the associated tolerances, indicating only allowed shifts to accommodate the tolerance range. However using this idea, the specifications on the...
  3. GCalin

    Understanding datum displacement

    Hi everyone, I was checking a dwg and got confused with how a datum displacement should work a position tolerance: If I understood correctly the MMC modifier of the center position of the eccentric cylinder, it means it can vary within a circle of 0.008mm when the diameter is maximum...

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