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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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  • me personally dont get this alignment.
    i mean the part takes up almost the entire CMM volume, its big boy part.
    and for alignment there are just 3 circles with sample hits.
    it seems to me and my noob brain that a bigger feature would be better for this part, because of projection error etc.
    3 tiny small circles for big boy part huh..
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  • me personally dont get this alignment.
    i mean the part takes up almost the entire CMM volume, its big boy part.
    and for alignment there are just 3 circles with sample hits.
    it seems to me and my noob brain that a bigger feature would be better for this part, because of projection error etc.
    3 tiny small circles for big boy part huh..
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