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  1. J-Hendry

    Reporting A Unilateral Surface Profile Tolerance

    I think this covers everything I'm seeing my side.(Symbol is current being updated from design team - This should read as UZ) If you need any more info let me know.
  2. J-Hendry

    Reporting A Unilateral Surface Profile Tolerance

    Apologies Pmarc, i didnt explain properly on the Y dev points.. Yes, i am shifting the Co-ord to the planes origin and then rotating meaning Y DEV's are each points offset from the face
  3. J-Hendry

    Reporting A Unilateral Surface Profile Tolerance

    Pmarc. I recognise there is a difference in the meaning between the standards. After highlighting this point with our designers i believe they didn't recognise the calculation is different. In reference to your comment on how this should be seen in ISO - Is it this way only? As i've seen...
  4. J-Hendry

    Reporting A Unilateral Surface Profile Tolerance

    Good morning all, I'm working with a surface profile which uses the UZ modifier. The results reported I'm struggling to make sense of. The element is dimensioned with: |⌓|2.0 UZ 2|A|B|C| in 2 positions. My "A side" I have a reported value of 1.974 (Element constructed with x4 points in each...
  5. J-Hendry

    Different interpretations of the DATUMS - Which is correct?

    Thanks again for your help on this 3DDave. The engineer has come back now acknowledging the drawing isnt up to scratch for the intentions. Im still struggling to understand how the DAT A isnt considered a cylinder in the way its been dimensioned on the drawing as its fairly similar to this...
  6. J-Hendry

    Different interpretations of the DATUMS - Which is correct?

    Thanks for your input 3DDave, Unfortunately im still confused if this is dimensioned in the intended way by the drawer. I have put together a quick assembly which replicates the actual use of these parts here. Im not sure if this will give a better understanding of the initial component from...
  7. J-Hendry

    Different interpretations of the DATUMS - Which is correct?

    To follow up on my message yesterday This image below shows a similarly dimensioned part but mine doesnt have the diameter dimensioned in this position - Although it does have the diameter in the other view
  8. J-Hendry

    Different interpretations of the DATUMS - Which is correct?

    Hi 3DDave, In response to your first reply i can see the asssumption of this being the width dimension although i did post that this was in the incorrect position and should be offset from the distance. As updated below: I've understood for this to be only the contacted surface considered...
  9. J-Hendry

    Different interpretations of the DATUMS - Which is correct?

    Apologies, the datum A should be offset from the distance leader line. By me saying DATUM A I see as the cylinder I mean the cylinder axis incase I've left any confusion. What plane is it you're seeing as DATUM A? I see it that the concentricity/coaxility callout has just been placed in a way...
  10. J-Hendry

    Different interpretations of the DATUMS - Which is correct?

    Hello all, I hope this is posted in the correct place. I am currently going back and forth with one of our engineers regarding how I read the drawing and the setup for inspection to the engineer who has revised this drawing (Not the original drawer). Below is a roughly drawn part, fairly...

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