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CAD to PART alignment

hellofriends

Hello everyone, 

I'm new with CMM and PCDMIS as I started working on Hexagon 7.10.7 machine around 10 days ago and haven't had any training. My question is I find it hard to align imported CAD file to part on machine. When I import my CAD file, I do manual hits for plane, line and point in manual modes and level plane to Z axis and set origin. For line I rotate it Z axis to X axis. After that I enter DCC mode and make plane, line and point on my CAD file. After that my pln1, ln1, pt1 are on place and pln2, ln2, pt2 on another separate place, I can't get it to align properly. 

I have done a lot of research, but anything I try doesn't seem to work. Thank you very much in advance. 

  • 0

    IF you are just measuring features by hand, without selecting anything from the cad model, at the end of doing the alignment (level, rotate, origin, origin offsets) you must then click on CAD=PART.  That is the easiest way.  The harder way is to MANUALLY change the THEO values of each measured feature (XYZIJK values) to what they SHOULD be to match the cad model.

    Don't let the nay-sayers tell you "NEVER USE CAD=PART, bla, bla, bla", I've been using it for over 30 years and it works perfectly.

  • 0

    Oh, no, please get training first.  Any component costs tens of hundreds $ at least, US$! 

  • 0

    If I'm writing a new program, the first thing I do is bring in the CAD file and and use Transform to align my CAD file in PC-DMIS to match the manual alignment I intend to set up.
    Then I program my manual alignment on the computer, using PC-DMIS in program mode, without taking any actual hits on a physical part.
    Then I run the manual alignment on the part on the machine and so on and so forth.
    Perhaps this workflow might work for you? 

    Hopefully this isn't terrible advice, I don't have a mentor of my own and took training many years ago now, but this method is working for me.
    I'm sure the more experienced folk can chime in and correct where I'm wrong (if so) and offer more insight. 

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