HEIDENHAIN TNC 640 (34059x-05) ISO programming - Manual (Page 544)

Positioning with Manual Data Input
16.1 Programming and executing simple machining operations
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TNC 640 | User's ManualDIN/ISO Programming | 1/2015
Example 2: Correcting workpiece misalignment on machines
with rotary tables
Use the 3-D touch probe to rotate the coordinate system,
"Compensating workpiece misalignment with 3-D touch probe "
Write down the rotation angle and cancel the basic rotation
Select operating mode: Positioning with MDI
Select the rotary table axis, enter the rotation
angle and feed rate you wrote down, e.g.
G01 C
+2.561 F50
Conclude entry
Press the machine START button: The rotation of
the table corrects the misalignment