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Iterative Alignment issue

Shadowpaw
I have a part I have to do a iterative alignment on but the print only has 3A,1B, & 1C targets. The rotation is just 1 point on the top of the part on a plane lined up to the centerline of a cylinder on the opposite side. The plane is also called out as the B datum for a True position. Documents are controlled so I can't share it but is there anyway to rotate with only 1 target before I tell them they need to fix the print?

Thanks
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  • So if you have A datum defined as a cylinder, it's not 3 hits, it would be a minimum of five hits to construct a cylinder axis line for leveling.
    I generally produce a "ray line" (2d line perp to cyl axis) from centroid of cylinder, radially out to your single hit that "clocks" the cylinder. That would be a robust way to make a rotational datum.

    --If i've got it all wrong, can you napkin sketch for us to better understand?
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  • So if you have A datum defined as a cylinder, it's not 3 hits, it would be a minimum of five hits to construct a cylinder axis line for leveling.
    I generally produce a "ray line" (2d line perp to cyl axis) from centroid of cylinder, radially out to your single hit that "clocks" the cylinder. That would be a robust way to make a rotational datum.

    --If i've got it all wrong, can you napkin sketch for us to better understand?
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