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Help with a profile callout

constadin
Hello all!

Fast question for the following callout:



The callout is for controlling these 2 "L" shaped pockets(?!). This is actually half the part as there is a mirror half on the right side (thus the 2x and 4x designations on the basic dimensions). I am a bit confused as the 2.6 basic dimension is restricting translation of the vertical planes while the callout has no datums in the callout. Is this correct?

How would you control this in a no CAD program? Thanks in advance for your advices Slight smile
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  • I'd say the TED's are for locating the pockets during measurement (and their THEO's). When it comes to evaluating the profile, no datums should be used and only the form of the pockets are checked.
  • in reply to vpt.se
    Don't forget that because there are no datums, both profile callouts must be evaluated simultaneously. You will need to use either XactMeasure or the Geometric Tolerance command to do this, depending on what version of PC-DMIS you have - legacy cannot perform simultaneous evaluations. Also, because you don't have a CAD model, you will need to make sure the nominals are correct and will not be able to use iterate and re-pierce.
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  • in reply to vpt.se
    Don't forget that because there are no datums, both profile callouts must be evaluated simultaneously. You will need to use either XactMeasure or the Geometric Tolerance command to do this, depending on what version of PC-DMIS you have - legacy cannot perform simultaneous evaluations. Also, because you don't have a CAD model, you will need to make sure the nominals are correct and will not be able to use iterate and re-pierce.
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