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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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  • By the looks of your sketch, I would simply switch B and C.
    -Level to A axis(5 hit cylinder)
    -Rotate to a 2d perp line 'ray line' from a axis to C
    -Origin XY to A axis
    -Origin Z to B
    iterate
  • in reply to louisd
    If C is the top of a cylinder or circle-ish shape: I'd take a 3 hit circle with workplane parallel to A axis, then make your 2d perp line from A to C circle center. From there, you can make a generic point that is C circle location +radius in your X+ or Y+ axis

    If c is a top plane, make a 2d line laterally and rotate to it... but big word of caution. do not allow that 2d line to have a theoretical mid that is anywhere remotely close to the A axis. if you load part off a bit, the rotation line can flip vector direction on you and hose your routine up at random.
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  • in reply to louisd
    If C is the top of a cylinder or circle-ish shape: I'd take a 3 hit circle with workplane parallel to A axis, then make your 2d perp line from A to C circle center. From there, you can make a generic point that is C circle location +radius in your X+ or Y+ axis

    If c is a top plane, make a 2d line laterally and rotate to it... but big word of caution. do not allow that 2d line to have a theoretical mid that is anywhere remotely close to the A axis. if you load part off a bit, the rotation line can flip vector direction on you and hose your routine up at random.
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