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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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  • I have not found any difference it its behavior regardless of FIT TO DATUMS ON or OFF nor have I found any difference between output to DRF or CURRENT ALIGNMENT.

    Jan, James, is my understanding correct that if there are VCs on the datums FIT TO DATUMS must be on?

    Another issue I had all but forgotten about. Sometimes the DF tolerance will change on its own to an impossible number such as +995412121231232111 -993452112111111111.
    I am using 4.3 but, I just got done reviewing the concepts brought up both by Sleth and Jan and during this little review, I used the HEXAGON DEMO BLOCK.

    Plane, line, circle alignment. Circle in the center, line on the front and a plane on the top.

    I then measured the 4 holes surrounding the center hole. I then reported the holes using Legacy dimensioning without modifiers. I then reported the holes using Legacy dimensioning using modifiers for the feature and the origin.

    Then I reported the holes using Xactmeasure; each hole individually (no modifiers).

    Then I reported the holes using Xactmeasure as a group (no modifiers).

    Then I reported the holes using Xactmeasure as a group using modifiers.

    And lastly, I reported the holes using Xactmeasure as a group with modifiers, and "fit to datums" turned on.

    They all seem to work.

    Please see attachment.

    Sorry for attachment
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  • I have not found any difference it its behavior regardless of FIT TO DATUMS ON or OFF nor have I found any difference between output to DRF or CURRENT ALIGNMENT.

    Jan, James, is my understanding correct that if there are VCs on the datums FIT TO DATUMS must be on?

    Another issue I had all but forgotten about. Sometimes the DF tolerance will change on its own to an impossible number such as +995412121231232111 -993452112111111111.
    I am using 4.3 but, I just got done reviewing the concepts brought up both by Sleth and Jan and during this little review, I used the HEXAGON DEMO BLOCK.

    Plane, line, circle alignment. Circle in the center, line on the front and a plane on the top.

    I then measured the 4 holes surrounding the center hole. I then reported the holes using Legacy dimensioning without modifiers. I then reported the holes using Legacy dimensioning using modifiers for the feature and the origin.

    Then I reported the holes using Xactmeasure; each hole individually (no modifiers).

    Then I reported the holes using Xactmeasure as a group (no modifiers).

    Then I reported the holes using Xactmeasure as a group using modifiers.

    And lastly, I reported the holes using Xactmeasure as a group with modifiers, and "fit to datums" turned on.

    They all seem to work.

    Please see attachment.

    Sorry for attachment
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