Slot True position

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  • Slot True position

    Learned Peers, please see the attached (1). I am unure how to measure and tolerance the true position of the slot (Ø 0.30 to D - the face in view). Im even finding the true position callout for the radius difficult to comprehend. If I rotate the CS by 5.50° then the 15.50 dimension will change, surely the 15.50 dim wants to be square to the 5.50° angle? Looks screwy to me but Im hardly an experty in ASME G,D and T.
    Any help will be gratefully recieved. I have added a plan view (2) and an ISO view for clarity.

    Cheers.






    F.
    Attached Files
    Recently jumped from 3.5 Mr 2 CAD
    to 2012 CAD++

  • #2
    Rotate your slot to 5.50 degrees, measure slot & then recall your alignment & dimension..........
    sigpic.....Its called golf because all the other 4 letter words were taken

    Comment


    • #3
      No expert myself
      It would seem you req further info, On drg 2 where is the dim line for dat C coming from /or going to?
      Also, Can't see where the slot is referanced from allong the part, you have a angle but no way of tieing it back to the length or where is the angle struck from a datum i.e. distance from datum C.
      Regarding pos (Ø 0.30 to D - the face in view). This sort of imples squarness to face but is not the best way of calling it out.

      Comment


      • #4
        Originally posted by Jedit View Post
        No expert myself
        It would seem you req further info, On drg 2 where is the dim line for dat C coming from /or going to?
        Also, Can't see where the slot is referanced from allong the part, you have a angle but no way of tieing it back to the length or where is the angle struck from a datum i.e. distance from datum C.
        Regarding pos (Ø 0.30 to D - the face in view). This sort of imples squarness to face but is not the best way of calling it out.
        Agreed - missing basic location data for the slot. But you would(after getting the missing data) rotate to the slots basic angle to report width TP,
        Links to my utilities for PCDMIS

        Comment


        • #5
          So we are in agreement, Im missing this dim yeah? (3)

          CMMGuy - how does the true position relate to the width? I dont have slot auto function (using DMIS CAD) so Im unsure how to tolerance it. I understand I need to rotate by 5.5° but thats where I get stuck ;o(
          Attached Files
          Recently jumped from 3.5 Mr 2 CAD
          to 2012 CAD++

          Comment


          • #6
            Originally posted by Farmer View Post
            So we are in agreement, Im missing this dim yeah? (3)

            CMMGuy - how does the true position relate to the width? I dont have slot auto function (using DMIS CAD) so Im unsure how to tolerance it. I understand I need to rotate by 5.5° but thats where I get stuck ;o(
            There is another thread running here on the same subject and it suggests using a generic circle. I cant believe that you cant do a TP on a slot in the almighty PCDMIS.... Surely that is corrected in 4.x
            Links to my utilities for PCDMIS

            Comment


            • #7
              Originally posted by cmmguy View Post
              There is another thread running here on the same subject and it suggests using a generic circle. I cant believe that you cant do a TP on a slot in the almighty PCDMIS.... Surely that is corrected in 4.x
              His version isn't of a high enough order, Pcdmis, Pcdmis-basic, Pcdmis-Cad, Pcdmis Cad++, has nothing to do with V3.7, or 4.1, etc.
              sigpic
              Originally posted by AndersI
              I've got one from September 2006 (bug ticket) which has finally been fixed in 2013.

              Comment


              • #8
                Hmm yeah, I saw that one.

                That confused me too ;o)

                I'm guessing that the true position call out for this slot is simply to control the perpendicularity of said feature, because the datum reference is to the face on what the feature lies.

                Thanks for the help Guys.
                Recently jumped from 3.5 Mr 2 CAD
                to 2012 CAD++

                Comment


                • #9
                  Originally posted by Matthew D. Hoedeman View Post
                  His version isn't of a high enough order, Pcdmis, Pcdmis-basic, Pcdmis-Cad, Pcdmis Cad++, has nothing to do with V3.7, or 4.1, etc.
                  What say you then Matthew? I cant measure the true position of the slot can I? The radius I can measure (simply) If I get the missing dim but as far as I know I cant do the slot.
                  Recently jumped from 3.5 Mr 2 CAD
                  to 2012 CAD++

                  Comment


                  • #10
                    Originally posted by Matthew D. Hoedeman View Post
                    His version isn't of a high enough order, Pcdmis, Pcdmis-basic, Pcdmis-Cad, Pcdmis Cad++, has nothing to do with V3.7, or 4.1, etc.
                    So you are saying that without a CAD version, you cant do true position of a width (Not referring to using auto slot)???
                    Links to my utilities for PCDMIS

                    Comment


                    • #11
                      Originally posted by cmmguy View Post
                      So you are saying that without a CAD version, you cant do true position of a width (Not referring to using auto slot)???
                      In case of any confusion, I do have CAD; just not CAD ++ (the one with the nice slot autofeature).
                      Recently jumped from 3.5 Mr 2 CAD
                      to 2012 CAD++

                      Comment


                      • #12
                        Originally posted by cmmguy View Post
                        So you are saying that without a CAD version, you cant do true position of a width (Not referring to using auto slot)???
                        Apparently without CAD++ you do NOT have the option of even making a slot, at least, not an AUTO FEATURE slot.
                        sigpic
                        Originally posted by AndersI
                        I've got one from September 2006 (bug ticket) which has finally been fixed in 2013.

                        Comment


                        • #13
                          Originally posted by Matthew D. Hoedeman View Post
                          Apparently without CAD++ you do NOT have the option of even making a slot, at least, not an AUTO FEATURE slot.
                          IMO, the width feature(not slot) should have a single axis TP characteristic. No gymnastics required...
                          Links to my utilities for PCDMIS

                          Comment


                          • #14
                            Originally posted by Matthew D. Hoedeman View Post
                            Apparently without CAD++ you do NOT have the option of even making a slot, at least, not an AUTO FEATURE slot.

                            Confirmed


                            *looks at PCDMIS CAD all embarassed*
                            Recently jumped from 3.5 Mr 2 CAD
                            to 2012 CAD++

                            Comment


                            • #15
                              Well, what I would suggest (other than getting the money out) is to create 2 generic circles, one based on the width and one on the length of the slot.

                              1) Measure a circle at each end (using 3 surface sample hits)
                              2) Construct a point at the mid-points of the circles
                              3) Construct a generic circle, using the average diameter of the end circles for the size
                              4) Construct a generic circle, using the 2-D distance (add radii) between the 2 end circles as the size
                              5) TP each generic circle by itself.

                              If, you only need the width, you can omit the stuff for the length of the slot.
                              sigpic
                              Originally posted by AndersI
                              I've got one from September 2006 (bug ticket) which has finally been fixed in 2013.

                              Comment

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