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  1. Brokenengineer

    Using Surface Profile to control location combined with a size tolerance of feature (ISO1101)

    Hi all, I have a standard drawing note stating: 'Unspecified form to be within 0.2 surface profile of supplied CAD data.' On a drawing of a sheet metal part, I have callouts for size control of holes, i.e. Dia. 5.3 +/- 0.05 mm Is it correct to control the position on the sheet metal of the...
  2. Brokenengineer

    Surface Profile with Position of point? (ISO GPS)

    Dear all, I am trying to control the main outside profile of this part but hold the end feature to a tighter tolerance. See attached: https://files.engineering.com/getfile.aspx?folder=5c5a3e36-e738-49ba-9716-020dfa4d601b&file=gdt1.png Is this an acceptable use of the surface profile call out...
  3. Brokenengineer

    GD&T Datums from two Holes

    Hi all, I was hoping if someone could review my use of Datums and FCFs in this example sketch. I am creating a production drawing for a part, and will be applying a GD&T scheme similar to this. But this is one of my first formal uses of GD&T, To understand design intent: The 15mm hole aligns...

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