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  • Users: sgjoachim
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  1. sgjoachim

    GD&T Datums on Ordinate 0-0

    Hi Everyone -- I have a question about specifying a GD&T datum at the 0-0 of an ordinate dimension scheme. The 0-0 is specified at the center of a hole, so is it correct to call out the horizontal 0 as datum B and the vertical 0 as datum C, assuming a perpendicular surface is already datum A...

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