Master CNC Programming: Fanuc G71 Rough Turning & G70 Finish Cycle Example

Here is another cnc programming example, this cnc programming example shows the use of G71 Canned Cycle and G70 for Fanuc CNC Control.

G71 Turning Cycle

Although I already have posted about the G71 Turning Canned Cycle(Rough Turning Cycle), but that blog post just illustrates the use of G71 and G71 parameters.

This cnc programming example shows a complete contour cutting with G71 and finish cut on contour with G70.

G70 finishing cycle for fanuc cnc control can also be used with G72 Facing cycle for fanuc control. Usage of G70 Finishing cycle with G72 Facing cycle is same as shows here in the following example.

Program Example

Master CNC Programming: Fanuc G71 Rough Turning & G70 Finish Cycle Example

CNC Programming Example with Fanuc G71 Rough Turning Cycle and G70

N10 G00 G90 X142 Z171
N20 G71 U4 R1
N30 G71 P40 Q110 U4 W2 F0.3
N40 G00 X40
N50 G01 Z140 F0.2
N60 G01 X60 Z110
N70 G01 Z90
N80 G01 X100 Z80
N90 G01 Z60
N110 G01 X140 Z40
N120 G70 P40 Q110
N130 G00 X200 Z220
N140 M30

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