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Profile tolerance

jim the
Hello,

I have drawing with a profile callout with a .004" spec. I am using PC-DMIS 2019 version.
My customer is measuring the part on Zeiss Machine.
The issue came up that they are able to spilt the tolerance to a +/-.002.
PC-Dmis, I am only able to enter the .004 using the "Exact Measure" option. I attempted the "Legacy" Mode this would not work either.

Is it possible to split the spec and have it read +/-.002, instead of the 0- 0.004?

Thanks,
Jim

attached is the drawing for reference
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  • XactMeasure won’t report +/- t/2 for a profile tolerance t if you don’t have a datum reference frame. The reason being that the profile tolerance zone is not constrained in translation or rotation, rather it is free to “float” around and best-fit the surface. Assuming Zeiss software performs the same optimization routine (I’m not sure how similar they are), the results should be about the same.

    When you look at your MIN/MAX values (they should be roughly the same), do they correlate to what the Zeiss reports say?
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  • XactMeasure won’t report +/- t/2 for a profile tolerance t if you don’t have a datum reference frame. The reason being that the profile tolerance zone is not constrained in translation or rotation, rather it is free to “float” around and best-fit the surface. Assuming Zeiss software performs the same optimization routine (I’m not sure how similar they are), the results should be about the same.

    When you look at your MIN/MAX values (they should be roughly the same), do they correlate to what the Zeiss reports say?
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