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  1. blinger

    contoured surface as a Datum ( like a windmill blade )

    Here is a print of the part i was talking about as far as having a curved Datum ( B ) See the attachment below. As far as i can see there are no target points. The only thing i can think of, as far as checking this with a CMM is to take points below each circle and constructing a Datum B plane...
  2. blinger

    contoured surface as a Datum ( like a windmill blade )

    We have a print that is calling the contoured surface of the blade ( like a windmill ) a datum. Is this feasable ? How would you program a CMM to have this surface called a Datum ? Does anyone know if the software ( PC-DMIS CAD ++ 4.3 )would accept it ? I don't quite how a Datum on a contoured...

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