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Profile Tolerance

Michael Tran
Hello All,

I have a part that the drawing only given a couple of FCF for True Position for 4 holes, Angle related to Datum A B &C and a profile tolerance of .030. I have to use a CAD model for inspection.

I was able inspecting the holes. For the remaining periphery of the parts, have been told because Profile Tolerance was given, I have to use a feature in PC-DMIS to inspect the periphery of the part, include angles. Please see the picture attached.

I am newbie to Romer Arm and PC-DMIS and working Profile Tolerance. Your guidance is greatly appreciated.



Parents
  • John,

    I was able using the vector point and created group and used surface profile for dimensioning. Then the system crashed on me so I have to start over and not sure how did the first time. What I am stuck right now is grouping all of the Vector in set for surface profile dimensioing.

    Here the steps

    1) Alignment (CAD and Part to CAD Model)
    2) Defined Datum Plan A B &C
    3a) Create a Point AutoTrigger Command with 'On' and 'Beeping On' selected (under F10)
    3b) Open the Auto Vector Point Dialog Box
    3c) Click many AV Points on the model
    3d) Create another Point AutoTrigger Command with 'Off' selected under F10
    4) Create a Constructed Feature Set
    5) Choose all your AV Points
    6) Create a Profile Dimension
    7) Define your Datums A,B,C with the 'Datum Definition' button
    8) Build your FCF like on the drawing
    9) Execute

    Also when I hit control Q to do the alignment of the part, the popup box appears with "Machine Error". Please see attached and let me know if it is normal I did some wrong.

    Your help is greatly appreaciate



    Those are steps you should have done. Measured Points aren't going to work, you need Auto Vector Points. The error message you saw will persist until you put in the Datum Reference Frame of ABC in the Profile Dimension.
Reply
  • John,

    I was able using the vector point and created group and used surface profile for dimensioning. Then the system crashed on me so I have to start over and not sure how did the first time. What I am stuck right now is grouping all of the Vector in set for surface profile dimensioing.

    Here the steps

    1) Alignment (CAD and Part to CAD Model)
    2) Defined Datum Plan A B &C
    3a) Create a Point AutoTrigger Command with 'On' and 'Beeping On' selected (under F10)
    3b) Open the Auto Vector Point Dialog Box
    3c) Click many AV Points on the model
    3d) Create another Point AutoTrigger Command with 'Off' selected under F10
    4) Create a Constructed Feature Set
    5) Choose all your AV Points
    6) Create a Profile Dimension
    7) Define your Datums A,B,C with the 'Datum Definition' button
    8) Build your FCF like on the drawing
    9) Execute

    Also when I hit control Q to do the alignment of the part, the popup box appears with "Machine Error". Please see attached and let me know if it is normal I did some wrong.

    Your help is greatly appreaciate



    Those are steps you should have done. Measured Points aren't going to work, you need Auto Vector Points. The error message you saw will persist until you put in the Datum Reference Frame of ABC in the Profile Dimension.
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