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FlatCAM and Laser Engravers

Marius Stanciu
Mon, 03 Feb 2020 13:00:51 GMT

I am creating this topic for sharing information's and experience regarding the subject of lasers and PCB's.

deko2n
Thu, 27 Feb 2020 08:56:08 GMT

There is a suggestion. When using a laser connected instead of a fan. The M107 instruction takes longer than the M106 S0. I only use the M106 S4 ~ M106 S0 to control the laser. My iron is a 3D printer on Marlin.

deko2n
Thu, 27 Feb 2020 09:00:46 GMT

;Marlin(Repetier) G-CODE GENERATED BY FLATCAM v8.991 - www.flatcam.org - Version Date: 2019/12/27 ;Name: TEST40x45.gbr_iso_cnc_1 ;Type: G-code from Geometry ;Units: MM ;Created on Wednesday, 26 February 2020 at 12:32 ;TOOL DIAMETER: -0.1 mm ;Z_Cut: -0.1 mm ;Z_Move: 0.1 mm ;Z Toolchange: 15.0 mm ;X,Y Toolchange: 0.0000, 0.0000 mm ;Z Start: None mm ;Z End: 15.0 mm ;Steps per circle: 64 ;Preprocessor Geometry: marlin ;X range: -0.100 ... 45.026 mm ;Y range: -0.100 ... 40.105 mm G21 G90 G92 X0 Y0 Z0 M106 S0 G0 X0.010 Y0.797 F1500.00 M106 S40 G1 F400.00 G1 X0.010 Y39.367 F400.00 G1 X0.010 Y39.372 F400.00 ~ G1 X0.010 Y0.797 F400.00 M106 S0 G0 X0.100 Y0.795 F1500.00 M106 S40 G1 F400.00

Marius Stanciu
Thu, 27 Feb 2020 14:33:44 GMT

So, basically you are recommending to replace the M107 with M106 S0?

deko2n
Thu, 27 Feb 2020 14:34:47 GMT

Yes..

Marius Stanciu
Thu, 27 Feb 2020 14:35:52 GMT

Ok, now that I'm officially in quarantine (stupid thing) I may dedicate some more time to FlatCAM :) Consider it done.

pauledd2
Thu, 27 Feb 2020 15:14:39 GMT

quarantine? Have you been Covid'ed?

Marius Stanciu
Thu, 27 Feb 2020 15:28:20 GMT

I had a trip to Milano (job related) for 3 days and when back ... quarantine at home (ermmm ... vacation :) ).

pauledd2
Thu, 27 Feb 2020 15:29:55 GMT

Alright, I'll keep my fingers crossed :)

Marius Stanciu
Thu, 27 Feb 2020 15:31:09 GMT

No need but thanks :) besides empty shelves in supermarkets and empty streets nothing strange in Milano.

pcb-hobbyst
Fri, 28 Feb 2020 21:51:00 GMT

Sorry for your experience here in Italy.... hope you're fine.

Marius Stanciu
Fri, 28 Feb 2020 22:00:24 GMT

Well, I love Italy and it's history. It's never a bad experience while going there: either vacation or work. And mozzarella really taste good :D

pcb-hobbyst
Fri, 28 Feb 2020 22:10:03 GMT

If you plan to visit Venice in future I would like to meet you :-)

Marius Stanciu
Fri, 28 Feb 2020 23:32:13 GMT

Thanks, I don't know yet where I will go in vacation this year but if I will pass nearby I'll say hello.

robbeh81
Wed, 22 Jul 2020 15:44:52 GMT

With flatcam it is possible to expose PCB with a 405nm laser. Different spot sizes might be realized by different z heights, so larger areas could be cleared with a large spot and details are exposed using the finer spots. So, differetnt tool diameters might be translated to different z heights in oder to achieve that.

Marius Stanciu
Wed, 22 Jul 2020 16:05:02 GMT

Correct but a calibration needs to be done.

Marius Stanciu
Wed, 22 Jul 2020 22:05:03 GMT

And also a Preprocessor that will move to a set Travel Z when encountering a Toolchange event. Which I've added to the app.

robbeh81
Thu, 23 Jul 2020 15:01:39 GMT

Where can I find it?

robbeh81
Thu, 23 Jul 2020 15:04:57 GMT

Is it in the GRBL-laser postrocessor?

Marius Stanciu
Thu, 23 Jul 2020 19:45:54 GMT

The new preprocessor it is based on the GRBL laser but different. It will be available in he next version of FlatCAM beta, when published (work is going slow on this version so it will take some time, sorry).

robbeh81
Thu, 23 Jul 2020 19:49:34 GMT

Thank you, much appreciated!

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