Defaults in QTplasmac

I'm curious and maybe this has been answered before, But in QTplasmac I import my part that was created in Sheetcam it has the settings in it for material and cut information but QTplasmac has a drop down for the material as well. should it update to the material specified in the file or do I need to manually adjust this? Also what is the default it reads the dropdown or the information in the file itself?

phillc54 wrote:

You should have SheetCam set up to either use the materials that are in QtPlasmaC or to create the materials as required.
If you have something like below in the G-code file:

(o=0, nu=2, na=5mm Mild Steel 40A, ph=3.1, pd=0.1, ch=0.75, fr=3000)
then SheetCam is creating the materials.
http://linuxcnc.org/docs/devel/html/plasma/qtplasmac.html#plasma:magic-comments

The default material in QtPlasmaC is set on the SETTINGS tab.

 

After a search I just found this post.
I use free sheetcam for very small files.

I get the above mentioned code in any file it creates. 
 Normally on line 23

It prevents Qtplasmac from using the material I chose in Qtplasmac. 

I always delete that file. 
Are there some settings to prevent Sheetcam from creating this line. 

I want to handle material settings from Qtplasmac exclusively.


 

Just getting back to this today. yesterday I cut some 3/16 yesterday and noticed as it started the file the default material changed to temporary material. I'm going to check the above items in my gcode to see what's being output.

Ok this is the start of my gcode as output from sheetcam.

; date and time: Mon Nov 18 2024 13:16:07
; postprocessor: LinuxCNC PlasmaC.scpost rev: 0.4
;
;begin pre-amble
G20 (units: inches)
G40 (cutter compensation: off)
G90 (distance mode: absolute)
M52 P1 (adaptive feed: on)
M65 P2 (enable THC)
M65 P3 (enable torch)
M68 E3 Q0 (velocity 100%)
G64 P0.01 Q0.001 (tracking tolerances: 0.01")
#<holes> = 2
#<h_velocity> = 60
#<h_diameter> = 1
#<oclength> = 0
;end pre-amble
;
;begin material setup
T0 M6 (select plasma tool)
G43 H0 (apply tool offsets)
(o=0,kw=0.068, ph=0.15, pd=0.2, ch=0.06, fr=120, th=1, cv=99, pe=0, jh=0, jd=0)
F#<_hal[plasmac.cut-feed-rate]>
;end material setup
G0 X0.18162 Y4.32319
M3 $0 S1 (plasma start)
M67 E3 Q100

Yes that one was the default. I just switched to the one Phil provided. Was able to run the materials in QTPlasmac but I seem to have an issue in Height control or maybe it was the consumable guess ill check that real quick...
Ok those look good but I'm getting intermittent raised cuts probably a settings issue in my HC but I've seen some PP create issues there as well. Im using the MESA THCad2 so its more than likely I haven't dialed that in correctly yet.

Ok never mind i did have a very small blow out I didn't see in the tip. so that would account for the raised HC look