Tool Length Offset (G43, G44, G49); Return Value (G98, G99) - Siemens SINUMERIK 802D Training Manual

Section 5

Tool length offset (G43, G44, G49)

Function
The tool length offset function adds or subtracts the amount stored in
the tool offset data memory to or from the Z coordinate values speci-
fied in the program to offset the programmed paths according to the
length of a cutting tool.
Commands
In the execution of the tool length offset function, addition or subtrac-
tion of the offset data is determined by the specified G code and the
direction of offset by the H code.
Programming
G01 G43 Z... H...
Or
G01 G44 Z... H...
Or
G49
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Return value (G98, G99)

Function
When using canned cycles, the retraction level for the Z axis is deter-
mined through G98/G99. G98/G99 are modal G codes. G98 is usu-
ally set as power-on default.
Programming
G85 G98 Z... R... F...
Or
G85 G99 Z... R... F...
SINUMERIK 802D sl Operating and Service Training Manual
Milling G codes
;tool offset is added to Z axis position
;tool offset is subtracted from Z axis position
;cancels the tool offset mode
Page 7
Notes
C95
C95