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i need help with a big part with iterative

Hey guys
so i have this big part, that the datums are defined by 3 datums points (three holes with sample hits that i did iterative with). I then constructed three theorietical planes (alignment planes) and defined those as ABC. Then i measured all the different features on the parted and called them out using FCF position.
the program works well, but some of my results gets weirdly high.
Ill upload pics with the datum targets (see black circles)

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  • I changed the correct axis for the plane evaluation now. Nominal is 37, measured is 38 for one plane, 38.5 for the other plane. so it makes sense that the TP dev is 2 and 3mm.
    but i have a hard time believing its acctually that far off from the part. since when we measure the height of the plane manually its spot on

    It has to be the datums that are spooking. ill post a snippet soon
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  • I changed the correct axis for the plane evaluation now. Nominal is 37, measured is 38 for one plane, 38.5 for the other plane. so it makes sense that the TP dev is 2 and 3mm.
    but i have a hard time believing its acctually that far off from the part. since when we measure the height of the plane manually its spot on

    It has to be the datums that are spooking. ill post a snippet soon
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