Optics: measuring and testing – Position or displacement – Position transverse to viewing axis
Reexamination Certificate
2005-06-21
2005-06-21
Fuller, Rodney (Department: 2851)
Optics: measuring and testing
Position or displacement
Position transverse to viewing axis
C700S195000
Reexamination Certificate
active
06909517
ABSTRACT:
A method is provided for assessing accuracy of positioning a NC machine having a spindle that is movable along each of at least two mutually orthogonal translational axes. The method Includes creating a master flame of reference relative to the translational axes by moving the machine along first and second translational axes. For each translational axis, coordinates of a target mounted adjacent the spindle are determined at a number of points along the respective translational axis. A linear fit of the coordinates is then calculated so as to create a set of mutually orthogonal axes defining the master frame of reference. Accuracy of positioning the machine in the master frame of reference is checked by positioning the spindle at a number of locations, measuring the coordinates of the target for each location, and determining errors in positioning of the machine by based upon the measured coordinates and machine-determined coordinates.
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Coleman Richard M.
McCrum Russell C.
Fuller Rodney
The Boeing Company
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