True Position Problems with 4.2

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  • True Position Problems with 4.2

    We are receiving an error message "primary point does not lie on secondary axis so tertiary is not allowed" when trying to use 3 datums to calculate TP using FCF. We have no problems when using two datums to calculate TP. The problem only occurs when using three.
    Attached Files
    Sheffield Cordax RS-50
    PC-DMIS V4.2

  • #2
    Originally posted by GRS&S View Post
    We are receiving an error message "primary point does not lie on secondary axis so tertiary is not allowed" when trying to use 3 datums to calculate TP using FCF. We have no problems when using two datums to calculate TP. The problem only occurs when using three.
    Create a line between -B- and -C- (LINBC), and call that -C- when creating your datums for the FCF. I think you will find that to fix your problem.
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    James Mannes

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