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

PROGRAMMING
B–62754EN/01
4. INTERPOLATION FUNCTIONS
53
Example of Polar Coordinate Interpolation Program Based on X Axis
(Linear Axis) and C Axis (Rotary Axis)
C’ (hypothetical axis)
C axis
Path after tool nose radius compensation
Program path
N204
N205
N206
N203
N202
N201
N208
N207
X axis
Z axis
N200
Tool
O0001 ;
N010 T0101
N0100 G00 X120.0 C0 Z _ ; Positioning to start position
N0200 G12.1 ; Start of polar coordinate interpolation
N0201 G42 G01 X40.0 F _ ;
N0202 C10.0 ;
N0203 G03 X20.0 C20.0 R10.0 ;
N0204 G01 X–40.0 ; Geometry program
N0205 C–10.0 ; (program based on cartesian coordinates on
N0206 G03 X–20.0 C–20.0 I10.0 J0 ; X–C’ plane)
N0207 G01 X40.0 ;
N0208 C0 ;
N0209 G40 X120.0 ;
N0210 G13.1 ; Cancellation of polar coordinate interpolation
N0300 Z __ ;
N0400 X __C __ ;
N0900M30 ;
X axis is by diameter programming, C axis is by radius programming.
Examples

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