find "highest" point on circle as datum

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  • find "highest" point on circle as datum

    Hey all
    I know theres already a bunch of "high point circle" thread, but i couldnt find one that helps me.

    Ill upload two snaps of the drawing for your ease:

    So you see the basic dimension 6mm should be from the highest point of the circle/cylinder.
    The cylinder has a very short arc and im using pcdmis 2011 and a tp200 touch probe ATM.

    Could anyone help me fix this datum? Its just used as a teritary to lock one orgin.

    edit: ok i found a way to get better results. Aligned to A (midplane in Y) and B (midplane in X) then just took a vector point at orgin and made that point the datum. seems to work fine.
    Attached Files
    Last edited by pcdmisstudent; 07-02-2020, 09:44 AM.

  • #2
    I cannot see the entire part (and I'm not asking you to show me) but from what I can see Datum-C- is a flat plane.

    Sometimes BEST FIT alignments and or Iterative alignments are better for "not square" features. I, myself, prefer to use a series of iterative alignments tightening up the the point target tolerance on each new iterative alignment.
    Jesse Krook


    • #3
      I agree with C looking like it should be a flat surface.
      PC-DMIS CAD++ 2o23.1


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