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MMC and LMC on a Datum Reference Do not Affect the Feature’s Tolerance (#157)

(In accordance with Y14.5M-1994 standard)

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Referencing a datum feature at MMC or LMC does not change the tolerance on the feature(s) being toleranced. These modifiers, however, may allow the part to float or shift relative to the datum reference frame. Notice that the 15 mm diameter hole references both B and C at their MMC. Therefore, if both B and C are produced at their MMC, there is no …

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Back to Tips Tip added Feb 2003