Messages

1

German / Re: Hilfe bei der Laser Einrichtung

« on: August 14, 2018, 05:23:50 PM »

Hi,

i think really the Laser is the Problem.
Even if i takte a very low laser intensity, the color is burned, but
the letters looking black and not white, because the sprayed color is burned.
Hope you understand what i mean?
I dont know if it is possible to solve that without another laser.
I think it is the difference in the nm of the laser, my is at 450nm, but a Co2 is at a higher nm, i think over 1000nm.

Matthias

2

German / Re: Hilfe bei der Laser Einrichtung

« on: August 13, 2018, 11:07:34 AM »

Hi,

Thanks a lot.
When i am back home i will try that and see what happens...

Mathias

3

German / Re: Hilfe bei der Laser Einrichtung

« on: August 13, 2018, 08:49:00 AM »

You can  also send me your CNC file.
so i have the right Speed and must only  try different laser power settings.

greets
Mathias

4

German / Re: Hilfe bei der Laser Einrichtung

« on: August 13, 2018, 05:52:18 AM »

Hallo,

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

I am  at work at the moment, but when i am back home i can send you the Solidworks file or the GCode. There
is no picture i use, i create that all in SW.

Matthias

5

German / Re: Hilfe bei der Laser Einrichtung

« on: August 13, 2018, 03:43:27 AM »

Good Morning,

i spray the Acryl the same, also with a rattle-can, but i did not have a air-assist.
But i think the biggest mistake i did is that i tried to burn the acryl too.
Next time i will set up the laser to only burn the color and give it a try, maybe it works better.
But another problem is that the announciators i build, are only 18x23 mm and the letters
are very small. Only 2.5mm hight in Solidworks.

I attached some pictures ...

Matthias

Ps.: What kind of laser did you use?

6

German / Re: Hilfe bei der Laser Einrichtung

« on: August 12, 2018, 12:05:39 PM »

Hi Tweakie,

try it out if you can....not so easy as it seams ;-)

But you can be right, i dont know if it is possible , but you give me a idea with the Heat.
Maybe it is possible to cool the Plexiglar, maybe with Air or maybe Water ??

I will try that out...:-)

Thanks

Ps.. i have a blue laser

7

German / Re: Hilfe bei der Laser Einrichtung

« on: August 12, 2018, 10:12:05 AM »

Hello,

thanks a lot for the Plugin, i will try it for sure.

But the main problem is no longer to get the Laser running, then it is now to
laser the 50% Milk PlexiGlas sprayed with black color.

So, i have the 1.8mm Plexi Glas witch is 50% ( around ) milky glas.
I sprayed a black color on it and try no to engrave letters only thru the black color. ( see attached picture )

The Problem, as you can see in the Picture, it is work in progress.

The lines are too small, so you can not see the white plexi during the day. If a light is behind the Plexi it looks very good.
But i need also to see the letters and the little lines , during the day without any backlight.

Have you any idea how i can reach this ??

Matthias

8

German / Re: Hilfe bei der Laser Einrichtung

« on: August 11, 2018, 09:38:34 AM »

Hi,

no , it i raster engraving.
I do all the Things ith Solidworks and Solidcam.

But if it is better to use any other program i can export a dfx from Solid* and use this in another program?

Matthias

9

German / Re: Hilfe bei der Laser Einrichtung

« on: August 11, 2018, 08:06:21 AM »

Hi,

ahh, ok.
I continue trying to get the M10/M11 kommands running. I am sure it is just a wrong setting in Mach3.

The Problem now ( more important ) is the Setup to Laser my litle panels?
I must laser this:

A 1.8mm PlexiGlas 50% white translucent. This is spray colored Black.
On the Black side i must laser a Text.

I am struggeling which settings i have to use. There are so many Variables... Feed, Laser intensity, depth, laser only one time ore more
At the end i need something like that:
https://flightsimulatorparts.com/product-category/boeing-737-accessories/boeing-737-annunciators/

The little panel is onle around 18x23mm

Have you any expieriences for the correct settings?

Thanks
Matthias

10

German / Re: Hilfe bei der Laser Einrichtung

« on: August 11, 2018, 05:24:39 AM »

Hi,

i got it working now.
It was a combination of wrong settings in Mach3.
The Pin was wrong and the Pulleye settings also.

I can now set the spindle speed for laser intensitie.
But the M10/M11 is not working, but with the M3/4 and M5 it works fine now !

Thanks for the Help
Matthias