Inkscape PlasmaC g-code generation

Hi,
I'm a total newbie in the whole CNC subject - I've built CNC bed, I've attached plasma torch to it, I can do test cuts in X and Y axis from PlasmaC GUI and now I'm trying to move to cut a project created in Inkscape (v1.0.1).

I've generated a simple text, processed the text outline so letters like "O" will not fall from the rest of the cut. Then I've generated the g-code. I've checked it in one of the on-line g-code viewers and discovered that LinuxCNC cannot accept it

Is there a g-code validator for PlasmaC that will tell me what commands are allowed and what are not?

G-code attached

In Inkscape when the drawing is finished go to extensions>gcodetools>tools library, choose plasma and click apply then close, now select that green window and select the text tool, edit the green window by removing lines with G31, G92, Z anything, leave just the lines with feed, tool, M3 and M5.
After that do the usual extensions>gcodetools>path to gcode.
In the folder where the gcode will be saved create a new empty file and name it "header", save it. That will get rid of the first M3 at the top of the gcode so it does not mess up the material.

Thank you. I did those modes and generated new code - I will be able to test it in the afternoon.

I have a floating Z sensor - do I need to add special code for that or M3 code will take care of the lowering the torch and firing it when required?

M3 will do everything, might also need an S nnn where nnn is some number, depending on how your config is set up, but usually it does work with just M3

Thank you for your help so far, but I need much more...
I'm totally confused.
First of all - initially I've loaded g-code and LinuxCNC was not throwing any errors to the file content and displayed the image of expected work. Then I've started the job and it didn't use the plasma torch

Next, I've executed few test cuts to check if the plasma is still operational... and it was...
So, I've tried the g-code again and this time the torch was activated (move to approx 30 sec mark on the video below):

I tried to get fancy and change the feed rate to #<_hal[plasmac.cut-feed-rate]> but it threw an error and reverted back to the default 400. The script expected a numeric instead of a string.

How are you handling that and material selection?

Here is the code I've loaded

I tried to get fancy and change the feed rate to #<_hal[plasmac.cut-feed-rate]> but it threw an error and reverted back to the default 400. The script expected a numeric instead of a string.
How are you handling that and material selection?

I have done some test custs and created material list - I've selected material from the dropdown list (3mm steel was used in my case).

In Inkscape I've changed from

to


I think I know where I've screwed up
The feed rate on my 3mm steel, from tests is 4800!!! I've left Inkscape params unchanged so the g-code was generated for 10mm with feed rate 400...

Am I right?

Yeah, the gcode you've attached does show a feedrate of 400. I'm curious how @tommylight handles this.

fwiw I've poked around the gcode extension's python code and figured out how to make it output #<_hal[plasmac.cut-feed-rate]>. Untested and I don't recommend it but hey, maybe it'll be fine.

Around line #3337 change:
f = " F{:f}".format(tool)
to
f = " F{}".format(tool)

Line 5158 change:
"feed": 400.,
to
"feed": "#<_hal[plasmac.cut-feed-rate]>",
(you can change the rest of your defaults here too)

Line 5347 just comment it out:
self.tool["feed"] = float(self.tool["feed"])
to
#self.tool["feed"] = float(self.tool["feed"])

Line 3091 change:
"feed": 400.0,
to
"feed": "400.0",

I think that's all the changes I made... again, I don't recommend it

You need a S1 after the M03, so it would be M03 S1

Does plasmac ignore feed rates during a cut? Just set it in the header?