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Here we go AGAIN... (concentricity and alignments)

Another instance of my programmer and I butting heads. First off, I want to ask... Is an alignment needed to measure the concentricity of 2 circles? If so, can a proper alignment be made with paint on the plane that we are leveling the part to? He says that even with paint (very uneven paint) on the part, the concentricity will be accurate. Again, be gentle. Slight smile
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  • Really?


    Twice times the 2d or 3d distance creates the feature zone. Sounds like POSITION.
    That's why you can use features with an odd number of hits. NOT OPPOSING MEDIAN POINTS.

    hope this helps.


    Yeah, really (?)

    I was referring to the question about paint on the surface and the effect (I hit reply on your comment - dph51). The best way to find out how much influence it has on the result is to run a test.

    I agree with the opposing median points by the way. There are many assumptions built into the software; the assumption that the circle is round when calculating concentrically is one of them.
Reply
  • Really?


    Twice times the 2d or 3d distance creates the feature zone. Sounds like POSITION.
    That's why you can use features with an odd number of hits. NOT OPPOSING MEDIAN POINTS.

    hope this helps.


    Yeah, really (?)

    I was referring to the question about paint on the surface and the effect (I hit reply on your comment - dph51). The best way to find out how much influence it has on the result is to run a test.

    I agree with the opposing median points by the way. There are many assumptions built into the software; the assumption that the circle is round when calculating concentrically is one of them.
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