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compare a measured point to a theoretical line from CAD

Ok so I'm pretty new with this software, but here's what I'm trying to do:

I'm using the auto line feature to guide to a modeled center line of a hole (the hole dia is smaller than the probe I'm using).. Using the readout I can see the distance to this center line as a vector and see how far away the hole is compared to where it's modeled to be.
After seeing the hole is correct, I'd like to now take a point with the probe in the hole, and then compare that measured point to the vector of the CAD center line. Ideally, I'm looking for it to report a distance in inches
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  • I found the "Read Point" function. All that does is tell you where the probe is located when the button is pressed while in the "Auto Feature" box, it doesn't actually report anything. I'm looking for a way to report a "point to line" vector comparison, when the line is an auto feature line, and the point is manually taken, if that's possible.


    Readpoint is not what you're looking for; that function returns the XYZ of the current probe location.

    What it sounds like you are interested in, is the Location of a Circle. Due to the circle size, it sounds like you are planning on using a 1-hit circle -- this is fine.

    1. Import and heal your model
    2. Create your alignment as indicated by your drawing
    3a. Use Auto Circle and choose your target/nominal from the CAD with a click of the mouse, or by entering the XYZIJKD manually.
    3b. Change the number of hits to 1
    3c. Change the number of sample hits to 3
    4. Create a Location Dimension with the appropriate axes and tolerances.

    Program is done.

    Execute the alignment. When the execution reached your 1-hit circle, you will take the 3 sample hits on the surface around the hole. Then you can nest the probe in the hole and take a single hit.

    Assumptions: you are using PCDMIS v2009 or later
    : the surface around the hole is flat
    : the hole's vector is perpendicular to the face.

    Good luck!

    Colin Simithraaratchy
    Colin.simithraaratchy@hexagonmetrology.com
    Applications Engineer - Irving TX
Reply
  • I found the "Read Point" function. All that does is tell you where the probe is located when the button is pressed while in the "Auto Feature" box, it doesn't actually report anything. I'm looking for a way to report a "point to line" vector comparison, when the line is an auto feature line, and the point is manually taken, if that's possible.


    Readpoint is not what you're looking for; that function returns the XYZ of the current probe location.

    What it sounds like you are interested in, is the Location of a Circle. Due to the circle size, it sounds like you are planning on using a 1-hit circle -- this is fine.

    1. Import and heal your model
    2. Create your alignment as indicated by your drawing
    3a. Use Auto Circle and choose your target/nominal from the CAD with a click of the mouse, or by entering the XYZIJKD manually.
    3b. Change the number of hits to 1
    3c. Change the number of sample hits to 3
    4. Create a Location Dimension with the appropriate axes and tolerances.

    Program is done.

    Execute the alignment. When the execution reached your 1-hit circle, you will take the 3 sample hits on the surface around the hole. Then you can nest the probe in the hole and take a single hit.

    Assumptions: you are using PCDMIS v2009 or later
    : the surface around the hole is flat
    : the hole's vector is perpendicular to the face.

    Good luck!

    Colin Simithraaratchy
    Colin.simithraaratchy@hexagonmetrology.com
    Applications Engineer - Irving TX
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