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True Position in 3 axis???

1CMM4ME
Ok, I have read the post regarding this so called argument that my boss and I got into today. He told me that you cannot measure true position in 3 axis, as I told him he was wrong. I know it depends on the way the FCF calls it out, but I tried to explain to him that it is possible to measure TP in 3 axis.
I have seen the formulas, so I know it's possible. I just wish I could get one of you gurus to reply back explaining that it is possible and why. I see the picture but he does not. I do not like to get into pissing matches with upper management, but I have learned a h**ll of alot from you guys, and I know this is possible. So if one of you fine gentleman can back me up on this, I would very much appreciate it. Thank you very much.
Now I am going to get a cold beer.Smiley
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  • In ISO-land, that is a legal callout - but you must omit the Ø!
    ...and yes, I know that is the same as a profile callout.



    Again, in ISO-land... If you tack it on the diameters centerline, the Ø must be there. However, if you tack it on the leaderlines coming from the generating lines (? two lines drawn from the 'surfaces' of the hole) you can omit the 'Ø' - which makes it perpendicularity in one axis. So, the way the callout is 'attached' to the feature also depicts how the evaluation is to be done.

    Don't know if ASME says the same though.

    ASME assumes CL or center plane depending on feature type.
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  • In ISO-land, that is a legal callout - but you must omit the Ø!
    ...and yes, I know that is the same as a profile callout.



    Again, in ISO-land... If you tack it on the diameters centerline, the Ø must be there. However, if you tack it on the leaderlines coming from the generating lines (? two lines drawn from the 'surfaces' of the hole) you can omit the 'Ø' - which makes it perpendicularity in one axis. So, the way the callout is 'attached' to the feature also depicts how the evaluation is to be done.

    Don't know if ASME says the same though.

    ASME assumes CL or center plane depending on feature type.
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