Incompatible G code

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Garball
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Posts: 13
Joined: Thu Jul 15, 2021 7:10 pm
Location: Port Moody

Incompatible G code

Post by Garball » Tue Nov 16, 2021 7:58 pm

Hi,

With QCAD/CAM, any gcode output I generate for the plasma cutter has a N code prefixed to it. As a result, Firecontrol software (from Langmuir Systems), doesn't recognize it and suggests its for Mach3. Attached is the error. How do I get plain G code output so I can try to upload to Firecontrol?

Thanks.
IMG_1978.jpeg
g code error in Firecontrol
IMG_1978.jpeg (59.22 KiB) Viewed 1225 times

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andrew
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Re: Incompatible G code

Post by andrew » Tue Nov 16, 2021 8:58 pm

You can try "LaserGRBL (offset) [mm]" which has no line numbers.

Garball
Junior Member
Posts: 13
Joined: Thu Jul 15, 2021 7:10 pm
Location: Port Moody

Re: Incompatible G code

Post by Garball » Tue Nov 16, 2021 11:51 pm

Hi Andrew,

Ok, so that worked and I have clean G code. However, in the CAM tool paths, there is no provision anymore for Z heights (ie: I need to be able to set safe Z height, initial pierce height and cut height). How does that work for plasma cutting? Do the 'power, feed rate, plunge rate' have any equivalents? Looks like we need a post processor for Firecontrol to make this work.

Cheers,

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andrew
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Re: Incompatible G code

Post by andrew » Fri Nov 19, 2021 2:26 pm

I've attached a first Firecontrol post processor with Z-movement (three files to be saved into the postprocessors directory of your QCAD/CAM installation, overwrite LaserBase.js).

Note: this will very likely need further refinement. Do look at the files and make adjustments as needed to header, footer, etc.
Attachments
LaserBase.js
(3.13 KiB) Downloaded 12 times
Firecontrol.js
(1.18 KiB) Downloaded 11 times
FirecontrolMM.js
(631 Bytes) Downloaded 10 times

Garball
Junior Member
Posts: 13
Joined: Thu Jul 15, 2021 7:10 pm
Location: Port Moody

Re: Incompatible G code

Post by Garball » Fri Nov 19, 2021 4:45 pm

Wow, that’s fantastic. I’ll install it today. Thank you!

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