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Xact Measure problem

slesholdofthreep
Has anyone had problems with Xact Measure TP dims? I have various parts with MMC on the DF as well as the Datums. As may be expected the DF and the datums all have different size tolerances. When setting up the dimension I tolerance them correctly, but once created the datum tolerances default to the DF tolerance. I have assigned variables for tolerances with little success. In fact I can type in the correct tolerance right into the dimension in the edit window and.. pfft... it reverts back to the DF tol. I am attempting to use this "improved" method because the hexagoon's say that legacy TP dims don't account for MMC on the datums correctly. WTF!

I am running V4.2mr2, but I have seen this in 4.1 and 4.2mr1.
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  • Matt- thats a good one when you have a VC on the DF only. Unfortunately, I have VCs on the datums as well which requires a qausi BF on the datums limited to there individual tolerances. If I had a coding solution for that I would be a much better programmer than I am.

    James- thanks for the tip. On a side note, do you think it reports the deviation for the set when dimensioning a group?

    No I don't believe so.

    James, this is only a problem when you need stats for multiple holes right? I ask because doesn't this method solve for simultaneous requirement Jan mentioned?

    Jan, in light of James' statement could one use PCDMIS silmultaneous evaluation function?
    Can you elaborate?

    If by "simultaneous requirement and/or simultaneous evaluation function", you mean the usage of datums as modifiers, no this is not the same as what I am talking about.

    From the left hand side oof the screen you pick your features to be dimensioned and in the FCF you pick your datums. I am picking multiple features from the feature list on the left hand side and only one statistic is being saved. This is incorrect
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  • Matt- thats a good one when you have a VC on the DF only. Unfortunately, I have VCs on the datums as well which requires a qausi BF on the datums limited to there individual tolerances. If I had a coding solution for that I would be a much better programmer than I am.

    James- thanks for the tip. On a side note, do you think it reports the deviation for the set when dimensioning a group?

    No I don't believe so.

    James, this is only a problem when you need stats for multiple holes right? I ask because doesn't this method solve for simultaneous requirement Jan mentioned?

    Jan, in light of James' statement could one use PCDMIS silmultaneous evaluation function?
    Can you elaborate?

    If by "simultaneous requirement and/or simultaneous evaluation function", you mean the usage of datums as modifiers, no this is not the same as what I am talking about.

    From the left hand side oof the screen you pick your features to be dimensioned and in the FCF you pick your datums. I am picking multiple features from the feature list on the left hand side and only one statistic is being saved. This is incorrect
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