Mach3 / Bobcad V21 file help

[Dfennell]

Having a problem with this gcode file when loading into Mach3...

Tried on Mach3 Stable and development versions, same results. File displays in the path window as a bunch of circles for the toolpath... very strange. Posted in bobcad V21 with the Mach3 specific post.

Basically, it's my daughters name in raised letters, with the background field milled to a depth of .2"


Someone mind taking a look and see if they get the same results? Amanda.txt is the gcode file and Amanda.dxf is self explanatory :-)

Also, gcode file displays correctly and simulates correctly in "simulate" on Bobcad.

[ger21]

Change the IJ mode in the general config.

[Dfennell]

That got it, thanx

[out**cold]

I am running mach3 and using BobCad Art Prox. I am not seeing the problem in the program..they are just x&y moves. Here's my story. I am cutting a 3D sign that I programmed with BobCad Art ProX and set my step over to .03...this is when I started to have my issues. the program starts and cuts well and even the graphics look good...but around the 17 line or later the machine just takes off. My tool path is on a 45 deg. angle and it refuses to stop and continue on to the next line. It runs off in the 45 deg angle. Any one know if Mach3 has a problem processing this much info?

[ger21]

Are you using G41 or G42? I've seen that happen if using G41/G42 and lots of short line segments.

[out**cold]

I am only using G43 for tool length

[ger21]

Can you post 50 lines of code so I can see what it's doing?

[out**cold]

This has been re- posted. The problem seems to be gone now that the distance was changed to .06. The machine is running now. I need closer tool paths! If you see any thing let me know. I need to run a .125 ball nose and can't tighten the path. I don't want hand work!


M5
M9
G0 G91 Z0.
T1 M6
S0 M3
G90 G54 X0. Y0.
G43 H1 D1 Z1.25
M8
X15.5287Y2.4688Z1.1
G01Z0.125F20.
X15.5107Y2.4508F75. G41
Z0.3659
X15.5101Y2.4501Z0.3679
Z0.3693
X15.509Y2.4491Z0.3714
X15.5076Y2.4477Z0.3744
X15.5063Y2.4463Z0.3764
X15.5044Y2.4444Z0.3785
X15.5025Y2.4425Z0.3799
X15.5006Y2.4406Z0.3808
X15.4987Y2.4387
X15.4911Y2.4312Z0.3828
Z0.3834
X15.4904Y2.4305Z0.3839
X15.4898Y2.4298Z0.3848
X15.4884Y2.4284Z0.3864
X15.4857Y2.4257Z0.3884
X15.4843Y2.4243Z0.389
X15.4829Y2.423
X15.4802Y2.4202Z0.3897
X15.4788Y2.4189
X15.4775Y2.4175Z0.3891
X15.4747Y2.4148Z0.3877
Z0.3883
X15.474Y2.4141
X15.4734Y2.4134Z0.3897
X15.472Y2.412Z0.3913
X15.4693Y2.4093Z0.3933
X15.4668Y2.4068Z0.3943
X15.4644Y2.4044
X15.4619Y2.402
X15.4595Y2.3995Z0.3932
X15.457Y2.3971Z0.3917
X15.4564Y2.3964Z0.3925
X15.4558Y2.3958Z0.3931
X15.4546Y2.3946Z0.3942
X15.4521Y2.3922Z0.3957
X15.4497Y2.3897Z0.3965
X15.447Y2.387
X15.4443Y2.3843Z0.3959
X15.4389Y2.3789Z0.3948
X15.4382Y2.3783Z0.3954
X15.4376Y2.3776Z0.3959
X15.4362Y2.3762Z0.3967
X15.4335Y2.3735Z0.3976
X15.4308Y2.3708
X15.4227Y2.3627Z0.3958
X15.422Y2.362Z0.3964
X15.4213Y2.3613Z0.3969
X15.4199Y2.36Z0.3991
X15.4172Y2.3572Z0.403
X15.4145Y2.3545Z0.4062
X15.4118Y2.3518Z0.4089
X15.409Y2.3491Z0.4111
X15.4063Y2.3463Z0.413
X15.4038Y2.3439Z0.4144
X15.4013Y2.3414Z0.4155
X15.3964Y2.3364Z0.417
X15.3939Y2.3339
X15.3914Y2.3314Z0.4176
X15.3645Y2.3046Z0.4231
X15.359Y2.2991Z0.4238
X15.3563Y2.2963
X15.3536Y2.2936
X15.3522Y2.2922
X15.3508Y2.2909Z0.4243
X15.3481Y2.2881Z0.4251
X15.3454Y2.2854Z0.4256
X15.3206Y2.2606Z0.4273

[ger21]

Originally Posted by out**cold M5 M9 G0 G91 Z0. T1 M6 S0 M3 G90 G54 X0. Y0. G43 H1 D1 Z1.25 M8 X15.5287Y2.4688Z1.1 G01Z0.125F20. X15.5107Y2.4508F75. G41

You do have a G41. That's probably what caused your problem. G41/G42 don't work well with lots of short G1's.

[out**cold]

I will have to have the computer do all the comp? I will try eliminating the g41. Hope thats all it is.

[ger21]

What version of Mach are you ruunning, and do you have "enhaced comp" turned on? Some older versions had comp bugs, so a newer version might help.

[out**cold]

Thanks!! I loaded the Mach3 Post. I didn't realize the post I was using and slightly modifying was thas much of an issue. Trying to go fast and not paying attention!!! Lesson that never seems to sink in!