Iterative Alignment Problems

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  • A Disho
    replied
    reply

    Try to have sphere # 3 as origin , or ask fixture builder if the have the z plane , as -z , z plane direction is from up to down

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  • Aguayo
    replied
    You can also do a manual long way alignment just to verify,Where youcan first Measure a feature then level then measure the features(feature) for your rotation then rotate then crate the Origen,just another way to verify your previous alingment.

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  • Jeffrey Lovely
    replied
    did you shut down and reboot
    that works sometimes

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  • Jeffrey Lovely
    replied
    pc demons - be gone

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  • Paul Sarrach
    replied
    Worse comes to worse, in the future. And it will. Start over. I have done that with success before.

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  • Tammie Godden
    replied
    I checked all this and more. I just ended up mirroring the part program, and using an existing alignment, all is well. PCDMIS glitch, I guess It is exactly the same in every way as the one I was trying to use. I don't know...

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  • Jeffrey Lovely
    replied
    what are the nominals for the tooling balls
    could it be missing a negative number or vise versa
    do you have scribe lines on the gage
    are the distances correct from edge or scribe line
    use calipers for rough reading

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  • Tammie Godden
    replied
    A0 =ALIGNMENT/START,RECALL:STARTUP, LIST= YES
    ALIGNMENT/ITERATE
    PNT TARGET RAD = 5, START LABEL = , FIXTURE TOL = 0, ERROR LABEL =
    MEAS ALL FEAT = ALWAYS ,MAX ITERATIONS = 99 ,LEVEL AXIS=ZAXIS ,ROTATE AXIS=XAXIS ,ORIGIN AXIS=YAXIS
    LEVEL = SPH1,SPH2,SPH3,,
    ROTATE = SPH2,SPH1,,
    ORIGIN = SPH2,,
    ALIGNMENT/END

    I have double checked all of the above. The fixture/TB/alignment has worked fine as I said about 100 other times. I don't get it...

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  • Jeffrey Lovely
    replied
    check tooling ball noms
    tb's may also have been labled with wrong noms
    change some numbers that may work & try best fit
    see if it starts to get better

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  • bob mappes
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    Try posting your alignment here and let us take a look at it.

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  • Tammie Godden
    started a topic Iterative Alignment Problems

    Iterative Alignment Problems

    Hi All



    I am trying to align a fixture, using iterative alignment. I have done this 100's of times with no problems. This time, however, I am having trouble. When I am finished with the alignment, it is WAY off. pretty good in the Y axis, but about 100 mm low in the Z axis, and about 100 mm forward in the X axis. I have double checked my probe build, it is correct. Any other suggestions?

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