HEIDENHAIN TNC 640 (34059x-04) ISO programming - Manual (Page 65)

Workpiece setup 1.6
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TNC 640 | User's Manual for DIN/ISO Programming | 3/2014
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1.6 Workpiece setup
Selecting the correct operating mode
Workpieces are set up in the Manual Operation or Electronic
Handwheel mode
Press the operating-mode key: The TNC switches
to the
Manual mode of operation
Further information on this topic
Manual Operation mode: See "Moving the machine axes",
page 457
Clamping the workpiece
Mount the workpiece with a fixture on the machine table. If you
have a 3-D touch probe on your machine, then you do not need to
clamp the workpiece parallel to the axes.
If you do not have a 3-D touch probe available, you have to align the
workpiece so that it is fixed with its edges parallel to the machine
axes.