G41 G40 Cutter Radius Compensation Example CNC Mill Program

Cutter Radius Compensation Example program shows how G41, G40 can be used in a cnc mill program.

Cutter Compensation code used in this program are,

  • G41 Cutter Radius Compensation Left
  • G40 Cutter Radius Compensation Cancel

Cutter Radius Compensation Example

G41 G40 Cutter Radius Compensation Example

G41 G40 Cutter Radius Compensation Example

N5 G00 G54 G64 G90 G17 X20 Y-20 Z50
N10 S450 M03 F250 D01 (12.5 MM DIA)
N15 C0
N20 Z5
N25 G01 Z0
N30 Z-5
N35 G41 X0 Y0
N40 X-48
N45 X-68 Y72
N50 X-28
N55 Y44
N60 X12 Y32
N65 X0 Y0
N70 G40 X20 Y-20
N75 G00 Z50
N80 Y100
N85 M30

Finished Part
After machining process completion, component will look like

Cutter Radius Compensation Example Finished Part

Cutter Radius Compensation Example Finished Part

Explanation of CNC G-Code
G00 : Rapid traverse.
G54 : Zero Offset no. 1.
G64 : Continuous-path mode.
G90 : Absolute dimensioning system.
G17 : X-Y plan selection.
G41 : Cutter radius compensation activation (left hand side movement)
G40 : Cutter radius compensation de-active
S : Spindle speed
F : Axis motion feed
M : Cutter rotation (3=clockwise, 4=anti-clockwise)
D : Tool offset no