The rectangle I demonstrating is 2" x 4", When make part the dimension always off about .015 radius and I though I could use tool compensation to take care of it, however Mach3 give me quite a problem. If I put in .015 in tool offset diameter the machine will cut (G03 X3.1963 Y2.1759 I0.1875 J0 F25.) line on the left as shown in the picture, if I put in -.015 in tool offset diameter the machine will cut (G02 X7.1213 Y1.8509 I0 J-0.325 line on the right as shown in the picture. Does anyone know why? maybe there is some parameter in the Config that I missed?

By the way, if i put .015/-.015 in Tool Wear under Tool Offset nothing happen, nothing I mean the machine will cut just fine but then it is defeat the point have comp .

Thanks




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O0
(MACHINE: FANUC 15MB MPost Library)
G17 G40 G80 G90
T1 M6
G00 G55 X3.0213 Y2.3634
G43 Z0.3 H1
M9
Z0.1
G01 Z-0.1 F25.
G41 X3.0088 F20. D11
G03 X3.1963 Y2.1759 I0.1875 J0 F25. (if .015 input this line start have problem)
G01 X6.7963 F20.
G02 X7.1213 Y1.8509 I0 J-0.325 (if -.015 input this line start have problem)
G01 Y0.2509
G02 X6.7963 Y-0.0741 I-0.325 J0
G01 X3.1963
G02 X2.8713 Y0.2509 I0 J0.325
G01 Y1.8509
G02 X3.1963 Y2.1759 I0.325 J0
G03 X3.3838 Y2.3634 I0 J0.1875 F25.
G01 G40 X3.3713
G00 Z0.3
X0.025 Y1.3125
Z0.1
G01 Z-0.1
G41 X0.0125 F20. D11
G03 X0.2 Y1.125 I0.1875 J0 F25.
G01 X1.8 F20.
G02 X2.125 Y0.8 I0 J-0.325
G01 Y0.2
G02 X1.8 Y-0.125 I-0.325 J0
G01 X0.2
G02 X-0.125 Y0.2 I0 J0.325
G01 Y0.8
G02 X0.2 Y1.125 I0.325 J0
G03 X0.3875 Y1.3125 I0 J0.1875 F25.
G01 G40 X0.375
G00 Z0.3
M9
G28G91 Z0
G90 G00 G59

X0 Y0
M30
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