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GD&T question - Position of that slot

Hey,

I have to help some engineer for his drawings, and i wonder about something.
Here it is:

Admitting i have that part (picture), and the important thing on it is that the slot has to be well centered related to the Ø15 hole.
As the slot is already dimensionned with profile on the drawing, my fist idea would be to add A reference on the hole, and add A datum into the Profile (picture2)
But would this work ? and is this OK related to ASME ?

Someone proposed to add symetry to locate the slot (pisture3) but i guess this does the exact same thing. and btw, is it possible to dimension symetry related to an axis ?

How would you dimension that ?

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  • The part showed was only a representation of the real part, which has 2 holes and slots. At first sight, i thought the holes were not on the same plane, but after a closer look they are !
    So maybe it could simplify the GD&T, here is what it looks like:



    Are you OK that including A-B in the FCF will simulate a plane in that case ?

    Or, as the hole is currently dimensionned with a "2x", do you think it is allowed to do something like this ? A would be a plane in that case if we take in consideration that this is both holes.
    But yeah i admit it would not less clear than the one above.

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  • The part showed was only a representation of the real part, which has 2 holes and slots. At first sight, i thought the holes were not on the same plane, but after a closer look they are !
    So maybe it could simplify the GD&T, here is what it looks like:



    Are you OK that including A-B in the FCF will simulate a plane in that case ?

    Or, as the hole is currently dimensionned with a "2x", do you think it is allowed to do something like this ? A would be a plane in that case if we take in consideration that this is both holes.
    But yeah i admit it would not less clear than the one above.

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