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Probe compensation without alignment

Hey guys. Could one of you explain this for me. I thought probe compensation was correct prior to a part alignment. Because even without a part alignment there is still a coordinate system within the CMM. Why wouldn't it be correct without a part alignment?
Parents
  • In my opinion this question has more to do with probing hit vectors.
    Probe compensation is relative and subject to a tangent-surface probe hit.
    Any time you are probing a component that isn't perfectly normal to the surface, you induce COSINE error.
    None of the above applies, because without a robust part alignment, you will always have some amount of cosine error.
Reply
  • In my opinion this question has more to do with probing hit vectors.
    Probe compensation is relative and subject to a tangent-surface probe hit.
    Any time you are probing a component that isn't perfectly normal to the surface, you induce COSINE error.
    None of the above applies, because without a robust part alignment, you will always have some amount of cosine error.
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