HEIDENHAIN ND 1300 OED and Crosshair Systems - Manual (Page 49)

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Quick Start
Create part skew and datum references
When the part is misaligned (twisted) in the X-Y plane, errors can be generated during the measurement
process. These errors can be eliminated by creating a skew alignment for the part.
The skew alignment includes a precise measurement of the part misalignment. Once the misalignment is
known to the system, subsequent feature measurements are automatically compensated to eliminate mis-
alignment errors. Measurement data in the DRO will reflect measurements of a perfectly aligned part.
Measuring a part skew
To skew the part:
1 Touch the Skew/Level Mea-
sure icon.
2 Perform the skew alignment by probing 2 or more points well distributed along the entire length of the
desired part reference edge. Press the Enter key to enter each point. Press the Finish key to complete the
Skew measurement. The skew line feature will be added to the Features list in blue.
Measuring a Part Skew