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  1. Cyeazel

    Flatness call out for partial surface

    Ah yes, I will add that too. Thanks for pointing that out. Thanks again for the advice. I very much appreciate it.
  2. Cyeazel

    Flatness call out for partial surface

    I've made some adjustments. I used the chain line instead along with a reference diameter to indicate where the flatness spec is needed. I also included the radius dimension for the inner corner which I had previously forgotten (Thank you dgallup for the reminder). Yes, the datum feature will...
  3. Cyeazel

    Flatness call out for partial surface

    Thank you all again for chiming in. I've attached another image of the drawing with the changes based on the suggestions here. I noticed your response after I updated the drawing. In what way will this impact the call out...
  4. Cyeazel

    Flatness call out for partial surface

    Thank you for your response. That is helpful. I appreciate it.
  5. Cyeazel

    Flatness call out for partial surface

    Hello I was wondering if anybody had some advice on the proper way to call out a flatness tolerance using GD&T but only for a partial surface. The application is a mechanical seal. I've attached a drawing for illustration. The surface in question is labeled datum A with the .001 flatness call...

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