chinesse lasers

hi!

what about these ?
there is a couple of laser diodes + driver, ranging from 100mw to the more interesting 1-2W range

[www.aliexpress.com]

has anybody tried the performance of these chinesse lasers?

thanks guys!
R

HI
Since 3 months ago, I've tried gray image engraving with blue laser 1.5W from China.
This blue laser is very powerful and I controlled laser power with laser driver using Arduino (Arduino with RAMPS 1,4).

I attached the result's engraving image by blue laser with my Micro-CNC.

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English blog: [dreammakercnc.blogspot.kr]
Korean blog: [blog.naver.com]

nice blog!

seeing the pictures that is exactly the kind of diode laser i've seen on aliexpress

did you try to cut some stuff?
it should be able to cut 3 mm of balsa or so...

R

Did you modulate the laser with an arduino?

Are the plans / code available?

Tnx

Yes. The blue laser is from Chinese. I also purchesed laser driver.
I've just engrave the gray scale image on MDF, wood and colored paper.
Actually I didn't acquire the small spot with this Chinese blue laser.
So I didn't try to cut some materials.

I've just study the focusing of laser and lens.
However, I think it can just cut the balsa wood and acrylic.
( actually I tried cut the hole on black acrylic. So it was very easy to cut it.)

To cozmicray,

The laser driver have TTL moudulation pin and I send PWM signal using Arduino ( Marlin firmware with RAMPS 1.4 kit).
I've just made new Gcode as like M160 S100 for Laser power control and M161 : Laser power on, M162: Laser power off
Also I assigned control pin in adrino.
For your referecce, I attached my laser control diagram.



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For more information : [dreammakercnc.blogspot.kr]
korean blog page: [blog.naver.com]