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Alignment using a POINT

x@x.com
How would I create this alignment with (Z) in it? I can constrain all 6 degrees with (A) and (B), but i'm not sure how to include Point (Z)?
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  • A and B do not appear to control all 6 DOF, A = Level/origin in Z axis (2 rotations/1origin), B = Origin X/Y (2origins), Z rotation about Z-axis(1 rotation)
    Z does appear to need to be a constructed feature, it does not appear directly measurable with a singular point on CMM.

    "C" highlighted holds Rotation. but since the notes say ABC is established by XYZ, I'm assuming this is a cast part, being machined by the the points established by XYZ. X establishes the "Z" "Y" has got me confused because I don't know what that upside down Y symbol is, but if it represents the outside diameter, then that takes care of "X" and "Y" Then Go to your machinist and have him mark the part he is using for a stop to the "Z". "Z" is controlling the Rotation. The engineer should have built some kind of a jig with that pin and calculated the the pin diameter to put that in the right spot, but then you want to communicate with the machinist to see which inside step he butted that against to get the proper repeatability.

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  • A and B do not appear to control all 6 DOF, A = Level/origin in Z axis (2 rotations/1origin), B = Origin X/Y (2origins), Z rotation about Z-axis(1 rotation)
    Z does appear to need to be a constructed feature, it does not appear directly measurable with a singular point on CMM.

    "C" highlighted holds Rotation. but since the notes say ABC is established by XYZ, I'm assuming this is a cast part, being machined by the the points established by XYZ. X establishes the "Z" "Y" has got me confused because I don't know what that upside down Y symbol is, but if it represents the outside diameter, then that takes care of "X" and "Y" Then Go to your machinist and have him mark the part he is using for a stop to the "Z". "Z" is controlling the Rotation. The engineer should have built some kind of a jig with that pin and calculated the the pin diameter to put that in the right spot, but then you want to communicate with the machinist to see which inside step he butted that against to get the proper repeatability.

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