Gerry, I'm running Tormachs latest, PCNC1100M3-IIRell3.12b, the licence info shows R3.042.029 as the Mach version.

I was running a pretty simple program. Just a .75" linear feed in, CCW .25" arc in, a CW 360 degree 2.75" circle, & a CCW .25" arc out.

Here is the code:

%

N100 O0000 (CUTTER COMP TEST 2)

(MASTERCAM - X3)

(PROGRAM - CUTTER COMP TEST 2.NC)

(DATE - NOV-27-2010)

(TIME - 10:39 AM)

(T23 - EM, 1/2, 4 OAL, 3F, FN, PM - H23 - D23 - D0.5000")

N102 G00 G17 G20 G40 G80 G90

N104 M998 ( TOOLCHANGE )

N106 T23 M06 (EM, 1/2, 4 OAL, 3F, FN, PM)

(MAX - Z1.)

(MIN - Z-.5)

N108 G00 G90 G54 X1.8934 Y.4419 S3000 M03

N110 G43 H23 Z1.

N112 G00 G90 Z.1

N114 G94 G01 Z-.5 F64.

N116 G41 D23

N118 X1.6282 Y.1768 F15.

N120 G03 X1.555 Y0. R.25

N122 G02 X-1.555 R1.555

N124 X1.555 R1.555

N126 G01 Y-.01

N128 G03 X1.6271 Y-.1872 R.25

N130 G40

N132 G01 X1.8905 Y-.4541

N134 G00 G90 Z-.4

N136 G00 G90 Z.1

N138 G00 G90 X1.8884 Y.4419

N140 G01 Z-.5 F64.

N142 G41 D23

N144 X1.6232 Y.1768 F15.

N146 G03 X1.55 Y0. R.25

N148 G02 X-1.55 R1.55

N150 X1.55 R1.55

N152 G01 Y-.01

N154 G03 X1.622 Y-.1872 R.25

N156 G40

N158 G01 X1.8855 Y-.4541

N160 G00 G90 Z1.

N162 M09

N164 M05

N166 M998 ( TOOLCHANGE )

N168 G28 Y0.

N170 G90

N172 M30

It looks to me to be correct...?

Barry