Siemens SINUMERIK 840Di sl - Page 344

Tool offsets
8.8 Tool radius compensation (G40, G41, G42)
Fundamentals
344 Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
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You can generate equidistant paths with OFFN, e.g., for rough-finishing.
Programming
G40
Or
G41
Or
G42
or
OFFN=
Parameters
G40
Deactivate tool radius compensation.
G41
Activate tool radius compensation; tool operates in machining
direction to the left of the contour.
G42
Activate tool radius compensation, tool operates in machining
direction to the right of the contour.
OFFN=
Allowance on the programmed contour (normal contour offset).