It's me or it's a bug?

I searched but I did not find so I write this post.
Hi all!

I'm now using the plasma more: QtPlasmaC v 2.9-238.315.

I have some strange behaviours:

1) I'm cutting a shape that I moved to <0, 0> by the conversational (subtracting 0.6 from each axis).
When I start the cut, the 0,0 turn to 0.6, 0.6... I can't measure the real cut position but... finishing the cut it goes back to 0,0 as in this video:
(investigating more, luckily it seams it's a visualization error only)

youtube.com/shorts/QHeixNg3vI8?feature=share

2) I'm cutting one shape, than I'm pressing a custom GO TO X0Y0 button that moves the torch over the last start 0,0 position, than I'm moving the torch by 60mm pressing 6 times the X left arrow (10mm each time), then I pres X0Y0 button to set the new starting position.
Sometimes, randomly, when I click CYCLE START, the Z axis movement is ignored and the shape is "cutted" in the air. To correct this I need to press and switch off the Power button, than switch it on again. I think it's not an electrical problem of my machine because the shape cutting movement occur without waiting the Z movement time... I also move the Z with the arrows befor starting cut cycle... Here the video:

youtube.com/shorts/zjP_dUaLeVU

3) Moving the X axis by arrows, I got to the right limit switch. I remember from previous version, you press OVERRIDE LIMITS in the message and it works to go back inside the limits... now... it seams to be looping in the message and can't go back within the limit because message appears...

youtube.com/shorts/i5hVDSLVbTQ


4) AND, I just saw now: is it a flip, is it a mirror?
Original:
 

Mirrored:
 

Flipped:
 

Thanks, for any advice.
These are not blocking errors, I mean, I can live with that! It's just to inform you in case you don't know.
I apologize if they where already posted, I did not find them. And thanks to all developers!!

Alberto 

Moved to "PlasmaC" section.

1) without your gcode it’s hard to tell what’s going on.

For the others, I would say that development for the qtplasmac in 2.9 stopped in August of 2024. Any and all bugs that have been brought up since have been addressed in 2.10.

It’s one of the unfortunate parts of the project that releases take years between versions. So much has changed in QtPlasmaC between version 2.9 and 2.10 that maintaining bug fixes in both locations for QtPlasmaC was not something I wished to spend my time doing.

Before he retired from the project, Phill rewrote a lot of the conversational code so I would imagine your issue has been solved in 2.10.

Hi

thanks Tommylight for moving the thread to the correct forum section, I thought I posted it to the PlasmaC section but I mistook posting it to the general section 

Thanks Snowgoer540, I will post/attach the gcode as soon as I get to the machine: I have the original gcode produced by SheetcamTNG and the modified gcode I saved by the QtPlasmaC I was actually using.

I think about one month ago' I installed the LinuxCNC last version downloaded from linuxcnc.org (Current release: 2.9.10) because the one I got was skipping some hole parts (I found a post about it)... I thought it included the last version of QtPlasmaC.

So if I understand the one included is not the last version, so I would like to install the correct one.
How can I install the last QtPlasmaC version? And, I did not understand, are there two locations where QtPlasmaC is?
Where is the most recent one and how to install it please?

Thanks to all in advance!

Alberto.

Thank you!

maybe I found some answer about installation here buildbot.linuxcnc.org/ ...I'm reading. I was editing my previous post but... there something wrong and only the first part of my previous post is showing in the edit window... so I posted this one...

Yeah, our editor gets flummoxed by smileys, so it does not show anything after those.

Thanks , so I will not use emoticons jejeje.

So, follow up: 
I will install as soon as possible the last version from...  instructions buildbot.linuxcnc.org/

so maybe errors are already corrected...

In the meantime, I'm attaching the gcode as modified by the "convers" in my QtPlasmaC. I saw I don't have the original produced by SheetcamTNG, I saved this on that one, so I only have this one (that is the one I was using).

About the error n 2, the "cutting in the air", while finishing the job (it's for a cantilever in my "borning shop"), I discovered the error is
when I press my custom button "Goto last X0Y0" before the Z axis finishes to reach the "idle height" after finishing a cut.
The button is a G0 X0 Y0 only (or it has Z0 as well? I have to check).
If I wait the Z axis to be at the idle height before pressing that button, the next cut properly works.

Bye, thanks,
have a nice day!


It did not attach the gcode, so I put it here:


;     file name: V2_Buco singolo.ngc
; date and time: Sun Oct 25 2026    01:44:24 PM
; 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 P18 (plasma, mield steel + zinc 2mm material)
 M66 P3 L3 Q2 (wait for valid change)
 F#<_hal[plasmac.cut-feed-rate]>
;end material setup
 G0 X24.49 Y12.151
 M3 $0 S1 (plasma start)
 M67 E3 Q100
 G3 X17.928 Y15.211 I-4.811 J-1.751
 G1 X3.833 Y10.081
 G3 X7.167 Y0.919 I1.667 J-4.581
 G1 X35.358 Y11.18
 G3 X32.023 Y20.342 I-1.667 J4.581
 G1 X17.928 Y15.211
 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 = 1
 ;   Cuts = 1,    Length = 98.67mm
 ;end statistics
 ;
 M30 (end program)