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Hi guys, 

I'm using QTPlasma 2.9-237.307 Powerd by QtVCP
since a long time, maybe now, it will became a job... (Let's see)

I'm doing some parts to fix the roof of "my shop", a plate with some holes, and PlasmaC does not want to make one hole... It just start the arc inside the hole and when it touch the real circumference it stops and it jumps to the next shape of the plate... others holes are ok. 
Is my code good? It was generated by SheetCam-TNG. I tried to recur (ignore arcok.. mesh.. always the same wrong path)
Any ideas? Thanks!
In the photo you see one hole only, just to test I modified the file, but it shows the same mistaken path as the complete code here:

;     file name: Piastra piegata per soffitto.ngc
; date and time: Wed Oct 07 2026    11:26:34 AM
; postprocessor: LinuxCNC PlasmaC.scpost rev: 0.5
;
;begin pre-amble
 G21 (units: metric)
 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 P0.254 Q0.025 (tracking tolerances: 0.254mm)
#<holes>      = 2
#<h_velocity> = 60
#<h_diameter> = 32
#<oclength>   = 4
;end pre-amble
;
;begin material setup
 T0 M6 (select plasma tool)
 G43 H0 (apply tool offsets)
 M190 P20 (plasma, mield steel 1/4" material)
 M66 P3 L3 Q2 (wait for valid change)
 F#<_hal[plasmac.cut-feed-rate]>
;end material setup
 G0 X177.8 Y76.2
 M3 $0 S1 (plasma start)  ****THIS FIRST HOLE IS NOT WORKING
 M67 E3 Q100
 G3 X182.184 Y71.816 I2.192 J-2.192
 G3 X182.184 Y71.816 I-4.384 J4.384
 M5 $0 (plasma end)
 G0 X177.8 Y25.4
 M3 $0 S1 (plasma start)
 G3 X182.184 Y21.016 I2.192 J-2.192
 G3 X182.184 Y21.016 I-4.384 J4.384
 M5 $0 (plasma end)
 G0 X234.338 Y44.171
 M3 $0 S1 (plasma start)
 G3 X241.579 Y44.171 I3.62 J3.62
 G3 X241.579 Y44.171 I-6.629 J6.629
 M5 $0 (plasma end)
 G0 X25.4 Y25.4
 M3 $0 S1 (plasma start)
 G3 X21.016 Y29.784 I-2.192 J2.192
 G3 X21.016 Y29.784 I4.384 J-4.384
 M5 $0 (plasma end)
 G0 X25.4 Y76.2
 M3 $0 S1 (plasma start)
 G3 X21.016 Y80.584 I-2.192 J2.192
 G3 X21.016 Y80.584 I4.384 J-4.384
 M5 $0 (plasma end)
 G0 X266.12 Y53.358
 M3 $0 S1 (plasma start)
 G3 X261 Y48.238 I0 J-5.12
 G1 X261 Y0
 G2 X260.35 Y-0.65 I-0.65 J0
 G1 X0 Y-0.65
 G2 X-0.65 Y0 I0 J0.65
 G1 X-0.65 Y101.6
 G2 X0 Y102.25 I0.65 J0
 G1 X260.35 Y102.25
 G2 X261 Y101.6 I0 J-0.65
 G1 X261 Y48.238
 M5 $0 (plasma end)
 ;
 ;begin post-amble
 G40 (cutter compensation: off)
 G90 (distance mode: absolute)
 M65 P2 (enable THC)
 M65 P3 (enable torch)
 M68 E3 Q0 (velocity 100%)
 M5 $-1 (backup stop)
 ;end post-amble
 ;
 ;begin statistics
 ;Pierces = 6
 ;   Cuts = 6,    Length = 997.75mm
 ;end statistics
 ;
 M30 (end program)

Any ideas?

 

Not CloudFlare, the one bellow with "supabase" domain name.
-
CloudFlare is very good at what they do, and they do a lot, but the main thing is they figured out how to protect websites from DDOS attacks, and beat AKAMAI in their caching game.

Thanks Tom, and sorry for misreading you on the wiki.
▎ About the script: that's Cloudflare Web Analytics (static.cloudflareinsights.com), the visit counter of Cloudflare, which hosts the site. No cookies, no tracking across sites, just page view counts so I can see which pages people actually read. NoScript flags it, and the site works fine without it, so blocking it is totally OK.
▎ If anyone still has edit access to the wiki CAM page, I'd be glad to have a line for Turn G-code there (commercial, 15-day trial), next to SheetCAM and the others.

OK (hope this works)

First Python3 script "linuxcnc_grid_tool_G81_axis.py" this can be run eother from within axis and loads toolpath directly into axis or from desktop using python on Geady or terminal and save to .NGC file.

The script I use to engrave a grid on my sacrificial MDF machine bed and drill fixing holes at grid intersections

I have 12 scripts in total available to upload and also 5 subroutines i can upload them individually or as a zip.

 

 

HansU wrote:

Yeah that's also a possibility, but the duplicated "G54" consumes too much space IMHO.
 

There is no way to avoid this.
If we assume that G54 needs to be displayed somewhere, then we might as well display it several times and we need to have room for G59.3 (two more characters).
What I pasted above was painted in Inkscape, in Gmoccapy there will be a different font, so it will look a little different.
I adopted the rule that everything that may be needed must be displayed, but the position in the current coordinate system should be displayed as large as possible and cannot be confused with anything else (hence the different colors).
Of course, someone may have a better idea, but this issue should not be considered in terms of what is beautiful and what is not for whom, it should only be useful and safe.

Odessit wrote:

Thanks Tom, fair points. Understood about the wiki - open source only, I'll leave it.

I did not say that, at least id did not want to say that, i meant i am sure about SheetCAM, but not about the rest, so if the rest have trial versions, it should also be possible to add yours, and i mentioned where the password should be, but last i checked the wiki was 15 years ago.
-
First, thank you for making me feel a lot better about this, i checked your website, and the first thing you mention is the fact that LinuxCNC has such tools. Thank you for the respect.
Also checked the comparison, but i can not decide anything as i have very little experience with a CNC lathe, so i will leave that to others to decide for themselves.
-
As for the website, see the attached picture, it is trying to run a script that points to a fuzzy website, see above the mouse.
This should be easy to remove, just check your HTML/CSS/JS files for that web name and remove it.
It also may be functional, but since everything works fine without it, you might as well remove it.

Again, thank you for being fair and respectful, very much appreciated.

tuxcnc wrote:

 

 

Yeah that's also a possibility, but the duplicated "G54" consumes too much space IMHO.

grandixximo wrote:

Not sure why A and B needs the smaller text size, but looks ok.

Just keeping the current arrangement:
linuxcnc.org/docs/devel/html/image/gui/i.../gmoccapy_5_axis.png

grandixximo wrote:

You are removing information though, the Abs might deserve a switch, maybe on click/tap? maybe with some kind of hint, clicking on dtg changes it to abs?

Yeah that's what I meant with "toggle the display of the right part." So don't rotate the displayed values, only switch between Abs and DTG in the right part.

Thanks Tom, fair points. Understood about the wiki - open source only, I'll leave it.

Good idea about the comparison chart, here it is:
turngcode.com/en/blog/turn-gcode-vs-free-linuxcnc-lathe-tools/

To be honest about the overlap: the basics (turning, facing, boring, chamfer/radius, simple threading) are covered by the free Lathe Macros and LatheEasyStep too, and LatheEasyStep does free contours and keyway slotting, which Turn G-code doesn't. Where Turn G-code is different: multi-start threads, tapered threads over the full length (G76 only tapers the entry/exit), set run-in/run-out, concave sphere and the face spiral, it runs standalone on Linux or Windows without touching the config, and has output options for controls without G76.

If anything in the table about the free tools is wrong, please correct me and I'll fix it.

I do not know the Wiki password, and the PM is disabled on this forum ( i think). That info should be in the Wiki, see if you can find something like "how to edit pages" or similar.
SheetCam is not a trial version, it is a limited output version (at least it was), no idea about the others but i tend to think they also have usable limited versions, not trials.
Either way, Open Source project so only open source stuff should be here, and that puts us in a bind as there is often talk about Fusion360 and other payed stuff.
-
We do have several versions of lathe conversational and macros, all free and open source and included with LinuxCNC, but i have limited experience with them, so i would really appreciate if someone else can share what is different or what is better in your software.
BTW, if it turns out we already had everything your software can do, i will really be disappointed, as i allowed this based on you being a member here for quite some time, and hoping you already checked before putting me in a very bad position.
So here is an idea, make a comparison chart between the included stuff and your software, that helps a lot in winning customers.

Sorry, I meant 4.7K

Ok I will buy it at eusurplus on their website they have it in stock, I live in Spain.
Thank you very much for your answers

A quick question: is it OK to add Turn G-code (commercial, with a free 15-day trial) to the CAM table on the wiki Cam page (wiki.linuxcnc.org/cgi-bin/wiki.pl?Cam), next to CamBam / Estlcam / SheetCam? If yes, could someone PM me the wiki password? Thanks.

angelnu wrote:

It hasn't been clear to me about the resistors:

What value should the resistors have and what power should they dissipate?
4.7 ohm and 1/2 W resistors would be okay?
And I understand that they must be connected between the 5V pin of 7i97T and the QA, QB and IDX pins.
 

470 Ohms 1/4W  would be a good value (~10 mA) 
(4.7 Ohms is way too low = ~ 1A)

I am a new user of a few months with linuxCNC and AXIS and  found a resource of several Python scripts to use in Axis but many of them failed to work as most where created many years ago and not for use in Python3 so I fiddled and tweaked until they did then I enhanced some and created some others for my own use to save having to go to CAD to make toolpaths and run from a button on the sidebar in Axis.

Would these be of any interest I am willing to share (not knowing how to is an issue ). ADMIN...Unsure if this is the correct place to post this if not please let me know and either move to somewhere else or delete. 

More functions have since been added

angelnu wrote:

Cables 14, 15 and 16 are used in the machine.

They go back to the controller, you are swapping the controller, so they go to Mesa now.