Fanuc G71 cycle example

Step Turning operation by using G71 stock removal cycle:

Coordinates:

P	X	Z
1	62.0	2.0
2	0.0	2.0
3	0.0	0.0
4	20.0	-10.0
5	20.0	-40.0
6	36.0	-40.0
7	40.0	-42.0
8	40.0	-65.0
9	60.0	-80.0
10	62.0	-80.0

Program:

O0001;                                                ------ Program No.                

N1;                                                      ------ Start block no.

T0000;                                                ------ tool and offset cancel.

G28 X0.0 Z0.0;                                  ------ return to the reference point.

T0101;                                                ------ tool calling

G92 S1200 M03;                                ------ spindle rpm and direction

G96 S94;                                               ------- cutting speed

G00 X62.0 Z2.0;                                   ------- tool parking

M07;                                                      ------- coolant on

G42;                                                      ------- tool nose compensation in right side  

G71 U0.5 R1.0;                                     ------- stock removal cycle

G71 P10 Q20 U0.0 W0.0 F0.1;

N10 GOO X0.0;                                    ------- Profile of work piece

G01 Z0.0F0.25;

G03 X20.0 Z-10.0 R10.0 F0.07;

G01 Z-40.0 F0.1;

G01 X36.0 F0.1;

G01 X40.0 Z-42.0F0.1;

G01 Z-65.0 F0.1;

G01 X60.0Z-80.0F0.075;

N20 G01X62.0F0.3;

G00Z10.0;                                             ------- profile end

G40;                                                       ------- TNC cancel

M05;                                                      ------- spindle stop.

M09;                                                      ------- coolant off

G97;                                                       ------- cutting speed cancel.

T0000;                                                    ------- tool and offset cancel.

G28 X0.0 Z0.0;                                      ------- return to ref. point

M30;                                                       ------- program end and rewind.

Conclusion:

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Update:

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