please help with mastercam v9 post

[gasho]

Hi
I don’t have experience in writhing or modifying post processor for mastercam v9.1, so I am asking for help now.
#1 How to modify mpfan (generic Fanuc mill post) so do not post tool numbers and tool change any more.
#2 And in circular motions to post I & J instead of R
Any other tip regarding post processors for mastercam is more then welcome to
Thank you
Smple program used :

( 21/32 DRILL )
( DRILL 3/4-10 TAPED HOLES 4 PLC )
N368 G54 G17 G21 G69 G90
N370 G91 G30 W0
N372 G90 S350 M3
N374 G0 X-401.32 Y-381.
N376 G0 G30 Z0
N378 G43 H4 W100. M08
N380 G98 G83 W-34.408 Q2. R2. F76.200
N382 X-401.32 Y381.
N384 X401.32 Y381.
N386 X401.32 Y-381.
N388 G80 W100.
N390 M05
N392 G0 Z0 M09
N394 G49 G30 W0
N396 G91 G30 X0 Y0
N398 G90 M06 ------ m06 executes macro to stop and orient spindle
N400 M30 ------ toolchange done by operator

[psychomill]

To #1: You can eliminate T and M6 output but.... your machine doesn't need any tool changes? and you do you use different tools? You can suppress it in the post file but I want to understand how your output needs to be and what you're doing.

#2: Find this line near the beginning of your post file under "General Output Settings":

arcoutput : 1 #0 = IJK, 1 = R no sign, 2 = R signed neg. over 180

Change the value to "0" like this:

arcoutput : 0 #0 = IJK, 1 = R no sign, 2 = R signed neg. over 180

That should change your arc code.


NOTE: Post mods can get you in a stick real quick. Always back up your post file first before making any changes. That way you have something to go back to in case you edit something incorrectly.