FANUC Series 16/18/160/180-Model C for Lathe Operator Manual

PROGRAMMING
15. COMPENSATION FUNCTION
B–62754EN/01
202
Tool offset is used to compensate for the difference when the tool actually
used differs from the imagined tool used in programming (usually,
standard tool).
Offset amount
on X axis
Standard tool
Actual tool
Offset amount
on Z axis
Fig.15.1(a) Tool offset
In this unit, there is no G code to specify tool offset.
The tool offset is specified by T code.
Tool geometry offset and tool wear offset are possible to divide the tool
offset to the tool geometry offset for compensating the tool shape or tool
mounting position and the tool wear offset for compensating the tool nose
wear.
Total value of tool geometry offset value and tool wear offset value is set
as the tool wear offset value without option.
NOTE
Tool geometry offset and tool wear offset are optioned.
X axis
geometry
offset
value
X axis
wear
offset
value
Point on the program
Imaginary tool
Actual
tool
Point on the program
Offset
amount
on X axis
Offset
amount
on Z axis
Fig. 15.1.1(a) Difference the
tool geometry offset from tool
wear offset
Fig. 15.1.1(b) Not difference
the tool geometry offset from
tool wear offset
Z axis
wear
offset
value
Z axis
geometry
offset
value
15.1
TOOL OFFSET
15.1.1
Tool Geometry Offset
and Tool Wear Offset

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