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

PROGRAMMING
B–62754EN/01
1. GENERAL
29
Usually, several tools are used for machining one workpiece. The tools
have different tool length. It is very troublesome to change the program
in accordance with the tools.
Therefore, the length of each tool used should be measured in advance.
By setting the difference between the length of the standard tool and the
length of each tool in the CNC (data display and setting : see III–11),
machining can be performed without altering the program even when the
tool is changed. This function is called tool length compensation.
Standard
tool
Workpiece
Rough
cutting
tool
Finishing
tool
Grooving
tool
Thread
cutting
tool
Fig. 1.8 (a) Tool offset
1.8
TOOL FIGURE AND
TOOL MOTION BY
PROGRAM
Explanations
D Machining using the end
of cutter – Tool length
compensation function
(See II–15.1)

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