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Geometric Tolerance (PCDMIS)

Hi everyone, I have a question regarding the following dialog box in PCDMIS.

for datums referenced in MMB/LMB, a tolerance must have been previously defined in MMC/LMC with respect to their datums with a higher tolerance, the zero value in MMC/LMC is applied.

My question is how can it be done to define a tolerance beforehand?

Parents
  • PC-DMIS needs to know the nominal and tolerance of a datum feature of size when used in a datum reference frame with MMB.  This is done by reporting the size of the datum feature before using that feature in a Geometrical Tolerance command.  Add a dimension somewhere before the Geometrical Tolerance command that defines the nominal and size tolerance of the feature.  This could be a location dimension with the X,Y,Z, and size dimensions reported, another Geometrical Tolerance command that relates the datum feature to a datum reference frame, a size dimension, etc.  The main takeaway is that the datum feature must be reported before any other Geometrical Tolerance uses the feature in a datum reference frame.

Reply
  • PC-DMIS needs to know the nominal and tolerance of a datum feature of size when used in a datum reference frame with MMB.  This is done by reporting the size of the datum feature before using that feature in a Geometrical Tolerance command.  Add a dimension somewhere before the Geometrical Tolerance command that defines the nominal and size tolerance of the feature.  This could be a location dimension with the X,Y,Z, and size dimensions reported, another Geometrical Tolerance command that relates the datum feature to a datum reference frame, a size dimension, etc.  The main takeaway is that the datum feature must be reported before any other Geometrical Tolerance uses the feature in a datum reference frame.

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