Example CNC Lathe Program: OD Turning Using G73 Pattern Repeating Cycle
Submit by: Vikram
Summary
Write the CNC lathe program for a FANUC controlled machine using subroutine codes. Take the diameter of the work piece = 40mm, depth of cut = 0.5mm, speed = 1200rpm. Assume feed and other data suitably.
Drawing/Image
CNC Program
Main Program: N0 G90 F0.2 S1200 T0101 M04 N10 G00 X42 Z2 N30 M98 P12000 (call subprog O2000 once) N130 G28 U0 W0 N140 M05 M30 Subprogram: O2000; N30 G73 U12 R24 N40 G73 P50 Q120 U0.05 W0.05 N50 G01 X16 Z0 N60 G01 X16 Z-20 N70 G03 X30 Z-28 R8 N71 G01 X30 Z-45 N80 G01 X40 Z-60 N90 G01 X40 Z-68 N100 G02 X40 Z-78 R8 N110 G01 X40 Z-88 N120 G01 X50 Z2 N121 M99
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