CNC Milling | G41 Code | Tool Offset Example

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Technical Drawing

CNC Milling G41 Code Tool Offset Example

CNC Program

N1 T1 ; Tool 1 with offset D1
N5 G0 G17 G90 X5 Y55 Z50 ; Approach starting point
N6 G1 Z0 F200 S80 M3
N10 G41 G450 X30 Y60 F400 ; Compensation to the left of the contour, transition circle
N20 X40 Y80
N30 G2 X65 Y55 I0 J-25
N40 G1 X95
N50 G2 X110 Y70 I15 J0
N60 G1 X105 Y45
N70 X110 Y35
N80 X90
N90 X65 Y15
N100 X40 Y40
N110 X30 Y60
N120 G40 X5 Y60 ; Terminate compensation mode
N130 G0 Z50 M2

G Codes Explanation

G00 Rapid traverse
G01 Linear interpolation
G02 Circular interpolation CW
G03 Circular interpolation CCW
G17 Plane Selection
G41 Tool Offset (Left)


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