Missing lines in output for Laser engraver
Andy M
I have a generic Chinese laser engraver (TwoTrees Totem TT-2.5) and am using LaserGRBL in Win10 to control it.
I created a simple DXF using a really old version of TurboCad (v7.1 circa 2001). The DXF appears to import correctly into dxf2gcode. The .ngc output file is missing 2 of 5 lines. The vertical lines above the horizontal line are missing (location circled in attached image). I have tried other DXF files, and each time some lines get lost in the .ngc output.
I will post my .dxf, .ngc, and configuration files shortly if I can "figure out" how to do it.
Andy M
- G0 X 110.000 Y 17.000
- M3 S300
- F15
- G1 X 110.000 Y 17.000
- G0 X 110.000 Y 17.000
- M3 S300
- F15
- G1 X 110.000 Y 11.000
Andy M
Christian Kohlöffel
Hello Andy,
can you tell me which version you are using. I just checked the code for the development version:
The export of the all shapes and layers is done here:
Here you find how a shape is called to be exported:
Here you can find the milling of a shape:
https://sourceforge.net/p/dxf2gcode/sourcecode/ci/develop/tree/source/dxf2gcode/core/shape.py#l361
à Didn’t find a difference in the code between optizmized or not ….
Really strange behaviour. Specially that such a bug someone else should have complained already long ago I guess. What I could think of is a failure in the postprocessor config, but also didn’t find anything there.
Tried also to create 3 different NGC Files. With different options of TSP optimizsation on or off …
Regards
Christian
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Andy Massey
Thank you for your response.
I downloaded "DXF2GCODE-2019.10.25-win32.msi" from https://sourceforge.net/projects/dxf2gcode/files/ a few days ago. I am new to dxf2gcode (and to gcode in general), but I'm trying to learn.
I have looked at the .ngc files that you posted above (run from my "test.dxf" file). One thing that stands out to me is that you did not use my configuration files. Since this is for a laser engraver (which does not have Z motion control), I have removed many things in the configuration files to eliminate "Z movement" gcode output. I have also removed many configuration parameters that produce commands which my engraver doesn't understand (notably, the Startup code). Since I am new to dxf2gcode, I could have a mistake in my configuration files. Would you be willing to run my test.dxf with my configuration files (attached above)?
I will try to look through the Python code that you pointed me to, but I am not a good programmer.
Thank you for making your software available to the world and for supporting it here in the forum.
Andy
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Andy M
Christian Kohlöffel
Hello Andi,,
i will try to check it tomorrow. No time today to do it. Just hold on J ….
To view this discussion on the web visit https://groups.google.com/d/msgid/dxf2gcode-users/df92c7b8-f63e-4b9c-b1d1-f8ff54a43a95n%40googlegroups.com.
Christian Kohlöffel
OK, i did it ….
First of all. I am using the newest version of dxf2gcode in the development repository (for those who don’t have a python repository use the newest file here: https://sourceforge.net/projects/dxf2gcode/files/ dated today). I also attached my configs which I used. Tried both optimized and not with following results, which I guess is correct:
(Generiert mit: DXF2GCODE, Version: Py3.9.2 PyQt5.15.4, Datum: $Date: Fri Oct 25 20:45:56 2019 +0200 $)(Erstellt aus der Datei: C:/Users/chris/Desktop/Test.dxf)(Output format description: G-CODE for Lasercutter)
(Zeit: Sun Dec 12 12:37:38 2021)
G90 (Absolute programming)
(*** LAYER: 0 ***)
S300
(* SHAPE Nr: 4 *)
G0 X 10.000 Y 3.000
M3 S300
F5
F15
G1 X 10.000 Y 9.000
F5
M5 S0
(* SHAPE Nr: 0 *)
G0 X 10.000 Y 10.000
M3 S300
F15
G1 X 110.000 Y 10.000
F5
M5 S0
(* SHAPE Nr: 2 *)
G0 X 110.000 Y 9.000
M3 S300
F15
G1 X 110.000 Y 3.000
F5
M5 S0
(* SHAPE Nr: 1 *)
G0 X 110.000 Y 11.000
M3 S300
F15
G1 X 110.000 Y 17.000
F5
M5 S0
(* SHAPE Nr: 3 *)
G0 X 10.000 Y 17.000
M3 S300
F15
G1 X 10.000 Y 11.000
F5
M5 S0
G0 X 0.000 Y 0.000
M5 S0
Von: Christian Kohlöffel [mailto:christian....@googlemail.com]
Gesendet: Samstag, 11. Dezember 2021 17:06
An: 'dxf2gco...@googlegroups.com' <dxf2gco...@googlegroups.com>
Betreff: AW: [dxf2gcode-users] Re: Missing lines in output for Laser engraver
Hello Andi,,
i will try to check it tomorrow. No time today to do it. Just hold on J ….
Regards
Christian
Von: dxf2gco...@googlegroups.com [mailto:dxf2gco...@googlegroups.com] Im Auftrag von Andy M
Gesendet: Samstag, 11. Dezember 2021 07:38
An: dxf2gcode-users <dxf2gco...@googlegroups.com>
To view this discussion on the web visit https://groups.google.com/d/msgid/dxf2gcode-users/df92c7b8-f63e-4b9c-b1d1-f8ff54a43a95n%40googlegroups.com.