Can't seem to get gcode that works...

[ajawamnet]

On the left is what Freecad shows - on the right is my backplot. Using LinuxCNC postproc ... Using -- inches or null doesn't change it. Also tried the --modal and --axis-modal. No luck.

The other backplot program I have shows the same thing. I've used these backplot programs for years so I know they agree with my setup of Mach 3 not sure what's going on there



File's attached - just a simple profile on a piece of angle...

[ajawamnet]

also - tried some other post processors - some don't output anything...

[ajawamnet]

same Freecad output in Metacut view:

[GeneFC]

I ran your file and generated g-code output using the linuxcnc postprocessor. I got the following in Camotics. Looks completely normal.

Camotics Plot.png (31.77 KiB) Viewed 1110 times

Not sure where your experience is going astray. FreeCAD uses industry standard generic g-code. Perhaps you have added some special features for your Mach 3 processing that are mangling the FreeCAD output.

OS: Windows 7 SP 1 (6.1)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.20634 (Git)
Build type: Release
Branch: master
Hash: ba34cc6a96c15d64224e8f0c8b5da874f1e03a07
Python version: 3.6.8
Qt version: 5.12.1
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/United States (en_US)

Gene

[roerich_64]

PingPong

Hi Gene,
please take an other postprozessor. Than go back to linuxCNC postprozessor.

Then it comes an issue with the 'ProfileEdges' operation.

Bests
Walter

[ajawamnet]

I ran your file and generated g-code output using the linuxcnc postprocessor. I got the following in Camotics. Looks completely normal.


Camotics Plot.png


Not sure where your experience is going astray. FreeCAD uses industry standard generic g-code. Perhaps you have added some special features for your Mach 3 processing that are mangling the FreeCAD output.
)

Gene

That looks correct from your post.

This is a fresh install of Freecad so I did nothing to the posts that I know of.

I've tried everything I can think of ...

I even tried to just do a simple face profile still have arc issues - see pic:

[ajawamnet]

So even Mach 3 shows garbage in the same file the same way that Metacut and NC Plot do - see screenshot. I've done thousands of jobs using Visual Mill, Deskproto and Cambam - never had this issue - my webpage for my shop here :
http://www.ajawamnet.com/ajawam3/swarf/swarf.htm
my main page: http://www.ajawamnet.com

I'm not sure why I can't get this to work... shame too 'cause it looks like a Visual Mill killer.

As previewed in Mach 3:

[dubstar-04]

So even Mach 3 shows garbage in the same file the same way that Metacut and NC Plot do - see screenshot. I've done thousands of jobs using Visual Mill,

I can't reproduce this issue.

Please could you post your FreeCAD info. You can find under help->about FreeCAD and then click the 'copy to clipboard' button and paste the data here.

Thanks,

Dan

[GeneFC]

Hi Gene,
please take an other postprozessor. Than go back to linuxCNC postprozessor.

Then it comes an issue with the 'ProfileEdges' operation.

Bests
Walter

Walter,

I did exactly what you asked. I could not do much with the "other postprocessor" output, but when I switched back to linuxcnc everything was still normal.

Gene

[GeneFC]

I'm not sure why I can't get this to work... shame too 'cause it looks like a Visual Mill killer.

Please post the actual g-code output file that is giving the strange results. There may be some code that is output by FreeCAD that is not processed as intended by your setup. In addition to ordinary motion codes there are tool change codes, for example, and setup codes.

Gene