Fanuc Series 15i/150i-MA (Programming) Operators Manual

B-63324EN/03 PROGRAMMING 1.GENERAL
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1.8 TOOL FIGURE AND TOOL MOTION BY PROGRAM
Explanation
-Machining using the end of cutter - Tool length compensation function
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 (Operation : see II-9), machining can
be performed without altering the program even when the tool is
changed. This function is called tool length compensation (See II-14.1).
-Machining using the side of cutter - Cutter compensation function
Because a cutter has a radius, the center of the cutter path goes around
the workpiece with the cutter radius deviated.
If radius of cutters are stored in the CNC (See Operation II-9), the tool
can be moved by cutter radius apart from the machining part figure.
This function is called cutter compensation (See II-14.3, 14.4).
Standard
tool
H1 H2
H3 H4
Workpiece
Workpiece
Cutter path using cutter compensation
Machined part
figure
Cutter

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