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Geometric Tolerance (PCDMIS)

Axel De la rosa

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?

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    This isn't an error message. It's telling you that unless you specify a material modifier on a datum feature, PC-DMIS it will use the calculation of 0 @ MMC to determine datum shift. You may be allowed more datum shift if you have datum features that could allow shift based on their size variation within their allowable tolerance range, but it won't use that shift unless they are toleranced with MMC/LMC beforehand. 

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    This isn't an error message. It's telling you that unless you specify a material modifier on a datum feature, PC-DMIS it will use the calculation of 0 @ MMC to determine datum shift. You may be allowed more datum shift if you have datum features that could allow shift based on their size variation within their allowable tolerance range, but it won't use that shift unless they are toleranced with MMC/LMC beforehand. 

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