Problems with cutter compensation

[randyf1965]

I am making a part 3"x9" with severl .2" notches down the length that extend to the midpoint of the piece (1.5"). I am cutting with a .125 cutter but the notches are turning out to be ~.219"

Here is the gcode as generated by LazyCam... I manually cut the same notch and had to move the cutter .065 and got a notch .2" wide the gcode is moving .2"


(File Part4 )
(Monday, April 17, 2006)
G90G80G40G91.1
G0X0.5175 Y0.0000
G42
G1 X0.0000 Y0.0000 F100.00
X0.0000 Y9.0000
X3.0000 Y9.0000
X3.0000 Y8.0000
X1.5000 Y8.0000
X1.5000 Y7.8000
X3.0000 Y7.8000
X3.0000 Y4.5000
X1.5000 Y4.5000
X1.5000 Y4.3000
X3.0000 Y4.3000
X3.0000 Y1.0000
X1.5000 Y1.0000
X1.5000 Y0.8000
X3.0000 Y0.8000
X3.0000 Y0.0000
X0.0000 Y0.0000
G40
X0.0000 Y0.5175
G0 Z1.0000
M5 M9
G40G80M30