Messages

1521

Post Processors / Re: LazyCam post processor for Mach3 laser operation.

« on: August 13, 2018, 10:55:29 AM »

Perhaps try using the Vectric Post Processor I have posted here; http://www.machsupport.com/forum/index.php/topic,36639.msg251175.html#msg251175

Tweakie.

1522

German / Re: Hilfe bei der Laser Einrichtung

« on: August 13, 2018, 10:50:29 AM »

Hi Matthias,

I am not sure this will help you because I am not using a Gcode file as such but these are my settings.

Tweakie.

1523

German / Re: Hilfe bei der Laser Einrichtung

« on: August 13, 2018, 06:51:52 AM »

Hi Matthias,

i Think then the Problem is the Blue Laser  i have.

That is a possibility but it could also be the type of paint, the laser power, the axis speed, etc., who knows. Everything involving lasers always seems to require practice (trial and error) to learn the correct technique.

I would not be able to use a Solidworks file but I could run your Gcode,  if it is any help to you.

Tweakie.

1524

German / Re: Hilfe bei der Laser Einrichtung

« on: August 13, 2018, 05:20:08 AM »

Just a thought but if you send me one of your raster graphics (jpg or bmp preferred) I will try it here.

Tweakie.

1525

German / Re: Hilfe bei der Laser Einrichtung

« on: August 13, 2018, 05:16:17 AM »

Hi Matthias,

I am using a CO2 laser which will cut into the acrylic if the power level is set too high.

This test was done the same way as the previous example, using air-assist and two passes. I don't think the small letter size should be a problem.

Tweakie.

1526

German / Re: Hilfe bei der Laser Einrichtung

« on: August 13, 2018, 03:20:55 AM »

Hi Matthias,

This was done quickly this morning with ‘rattle-can’ matt black, badly sprayed onto opal acrylic.

I used ‘air-assist’ to prevent the vapour from the paint colouring the acrylic – I used a very low power setting (to avoid cutting into the acrylic) and two passes (the second pass cleans-up any residual paint).  I just used a standard typeface saved as a bitmap so it is a bit blocky – with properly prepared graphics and a bit of practice I think this could work well.

Tweakie.

1527

German / Re: Hilfe bei der Laser Einrichtung

« on: August 12, 2018, 10:51:11 AM »

Hi Matthias,

Sorry but I have not tried to do that so cannot give a definitive answer.

(It would appear that a laser with a wavelength that passes through acrylic (red ?) may ablate the paint layer without affecting the acrylic, assuming that the generated heat could be dissipated without melting the surface of the acrylic).

Tweakie.

1528

General Mach Discussion / Re: Mach 3 seems to be adding circles to my code

« on: August 12, 2018, 10:34:43 AM »

I am pleased that it works.

It all relates to how arcs are drawn within the CAD/CAM software and the resulting Gcode should ideally contain the G90.1 or G91.1 (as appropriate). The Mach3 manual explains more about Absolute / Incremental IJ Modes.

Tweakie.

1529

General Mach Discussion / Re: Mach 3 seems to be adding circles to my code

« on: August 12, 2018, 08:07:31 AM »

Hi,

Go into Config. / General Config. and change the IJ mode then regen. the toolpath.

Tweakie.

1530

German / Re: Hilfe bei der Laser Einrichtung

« on: August 12, 2018, 07:53:40 AM »

Hi Matthias,

The software you are currently using is probably best.

For Raster engraving I have been using the Mach3, Impact/Laser engraving plugin with excellent results but not all have had a similar degree of success. The latest version and my .pdf guide can be downloaded from here;  http://tweakie.byethost10.com/Engraving.zip (due to my bandwidth issues the download may be slow).
Perhaps give it a try and see.

Tweakie.