HEIDENHAIN TNC 370 User Manual page 271

9 3D Touch Probes
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9.2 Touch Probe Cycles in the MANUAL and ELECTRONIC HANDWHEEL Operating Modes
Outside circle
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Fig. 9.12:
Probing an outside cylindrical
surface to find the center
Select the probe function for datum setting at a circle center.
Move the touch probe to a starting position near the first touch point @ outside of the circle.
Select the probing direction.
Probe the workpiece.
Repeat the probing process for points 0, @ and @ (see Fig. 9.12).
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Enter the coordinates of the circle center.
After the probing procedure is completed, the TNC displays the current
coordinates of the circle center and the circle radius PR.
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TNC 370
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