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GD&T interpretation

​Hi Folks,

I am trying to understand the highlighted callout on the drawing attached. Does it mean that there is a requirement for the Positional Verification of the clip and the profile check on the inner edge if the clip. If that is the case then the profile check (+/-0.25 which is half of 0.5) would have the bonus form the positional check (2) ? so that the total profile check would be for 2.5 (+/-1.25). Your opinions are highly appreciated.


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  • Profile requirement in this case checks form only not location. That is what T.P callout aims for. My suggestion take one point on one side of clip & another on its other side get mid point & check its location to the datum scheme. For profile take a bunch of points or scan around its contour & establish a scan set & then check its form. But to be sure discuss this with engineering like the other commenter had said. Let them sign off anything they decide.
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  • Profile requirement in this case checks form only not location. That is what T.P callout aims for. My suggestion take one point on one side of clip & another on its other side get mid point & check its location to the datum scheme. For profile take a bunch of points or scan around its contour & establish a scan set & then check its form. But to be sure discuss this with engineering like the other commenter had said. Let them sign off anything they decide.
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