Cutter Radius Compensation (G40, G41, G42) - Siemens SINUMERIK 808D Programming And Operating Manual

Tool position offset:
Settings
● The machine data $MC_TOOL_CORR_MOVE_MODE determines whether the tool length compensation is to be
undertaken with the selection of the tool offset or only during the programming of an axis motion.
$MC_CUTTING_EDGE_DEFAULT = 0 defines that initially no tool length compensation is active during a tool change.
$MC_AUXFU_T_SYNC_TYPE defines whether the output of the T function to the PLC takes place during or after the
traversing movement.
$MC_RESET_MODE_MASK, Bit 6, can be used to define that the currently active tool length compensation will remain
active even after a RESET.
● The cutter radius compensation can also be called for an operation with tool length compensation.
Tool length compensation in several axes
Tool length compensation can also be activated for several axes. A display of the resulting tool length compensation is not
possible any more in that case.
4.3.4.3

Cutter radius compensation (G40, G41, G42)

In cutter radius compensation, the programmed tool paths are automatically shifted by the radius of the cutting tool used.
The path to be corrected (radius of the cutting tool) can be stored in the tool offset data memory using the NC operator panel.
The tool offsets can also be overwritten with the G10 command in the part program; G10 cannot be used to create new tools.
The tool offset data in the program is called by specifying the number of the tool offset data memory with a D function.
Programming and Operating Manual (ISO Turning/Milling)
01/2017
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