formandlocation

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  • formandlocation

    If there is no basic dimension to control location of a profile then it's just FORMONLY, correct.

  • #2
    Are you asking us, or telling us?

    You are partially correct, but I couldn't resist.!LOL!

    What does the symbol look like? An arc with no bottom, or with a line?
    When in doubt, post code. A second set of eyes might see something you missed.
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    • #3
      Asking cause someone is telling me.

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      • #4
        Originally posted by John Kingston View Post
        Are you asking us, or telling us?

        You are partially correct, but I couldn't resist.!LOL!

        What does the symbol look like? An arc with no bottom, or with a line?
        Sorry, couldn't resist. With the line means form & location, but if there is no basic there is an error on the drawing.
        When in doubt, post code. A second set of eyes might see something you missed.
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        • #5
          Does it have a datum specified?
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          • #6
            |profileofasurface|0.5|a|b(m)|c|

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            • #7
              Originally posted by John Kingston View Post
              Sorry, couldn't resist. With the line means form & location, but if there is no basic there is an error on the drawing.
              ARC with a bottom line, is PROFILE OF A SURFACE (3-D)
              ARC without the line is PROFILE OF A LINE (2-D)

              Examples of this would be (sheet metal)

              PROFILE OF A SURFACE for all the surface and profile of a line for the edge of the surface.

              FORM and LOCAITON will come into play by way of the datums called out. No datums in the FCF (profile 1.0mm) is form only. IF even 1 datum is in the FCF, then it is form and location since it has to be held in relationship to said datum.

              As for a basic dimension, there is no basic dimension for profile. There has to be a tolerance value, but no basic.

              Geez, John, I would have thought you would have gotten that one!
              sigpic
              Originally posted by AndersI
              I've got one from September 2006 (bug ticket) which has finally been fixed in 2013.

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              • #8
                Originally posted by Tested View Post
                |profileofasurface|0.5|a|b(m)|c|
                That callout out is FORM AND LOCATION, it has datum references in the FCF.
                sigpic
                Originally posted by AndersI
                I've got one from September 2006 (bug ticket) which has finally been fixed in 2013.

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                • #9
                  Originally posted by Matthew D. Hoedeman View Post
                  ARC with a bottom line, is PROFILE OF A SURFACE (3-D)
                  ARC without the line is PROFILE OF A LINE (2-D)

                  Examples of this would be (sheet metal)

                  PROFILE OF A SURFACE for all the surface and profile of a line for the edge of the surface.

                  FORM and LOCAITON will come into play by way of the datums called out. No datums in the FCF (profile 1.0mm) is form only. IF even 1 datum is in the FCF, then it is form and location since it has to be held in relationship to said datum.

                  As for a basic dimension, there is no basic dimension for profile. There has to be a tolerance value, but no basic.

                  Geez, John, I would have thought you would have gotten that one!
                  So this is not a good callout? ATTACH]1315[/ATTACH][
                  Attached Files

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                  • #10
                    Originally posted by Tested View Post
                    So this is not a good callout? ATTACH]1315[/ATTACH][
                    I would say not, simply because the toleranced surface will NOT have any deviaiton to the A datum, it is perpendicular to the A datum. Maybe they wanted a perp. callout? I mean, check a point on that surface, is there any deviation in the axis that is the A datum? NOPE!
                    sigpic
                    Originally posted by AndersI
                    I've got one from September 2006 (bug ticket) which has finally been fixed in 2013.

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                    • #11
                      Originally posted by Matthew D. Hoedeman View Post
                      I would say not, simply because the toleranced surface will NOT have any deviaiton to the A datum, it is perpendicular to the A datum. Maybe they wanted a perp. callout? I mean, check a point on that surface, is there any deviation in the axis that is the A datum? NOPE!
                      But there is deviation "PERPENDICULAR" to it.
                      My GD&T book seem to suggest that if there are no Basics holding it's location then it is form only.
                      But if there are bacics holding it; it does say that now it's form and location.

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                      • #12
                        I would agree that what they want is to control the surface perp. to datum A. Why they called it out that way I don't know. I don't think it is an invalid callout. Although, it would be much more clear if they had put a basic 90º in there. Kev, you want to weigh in on this one?

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                        • #13
                          Originally posted by Matthew D. Hoedeman View Post

                          Geez, John, I would have thought you would have gotten that one!

                          I knew that! No clue what I was thinking.... I humbly apologize for my poor answer. I will not drink one beer this weekend as penance.
                          When in doubt, post code. A second set of eyes might see something you missed.
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                          • #14
                            Originally posted by John Kingston View Post

                            I knew that! No clue what I was thinking.... I humbly apologize for my poor answer. I will not drink one beer this weekend as penance.
                            So how many are you drinking....
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                            if you had soap on a rope it would be tied to yer ankle

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                            • #15
                              Or perhaps he might be imbibing in another type of alcoholic beverage!!

                              ZydecoPete
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