Laser engraving


#21

@elminster

I found when testing small images 50x50mm, I could do 4 easily on the one piece of 150gsm white card, which was my test bed. Ir was easy to do the first print to the front left corner of the platform.

When complete I could turn on the laser Focus again and re-position the beam to the right side of the first image, reset the origin and run the second print and so forth, move the beam further back above the first image set the focus. I could easily print 4 images on the one card.

BTW if you use ordinary 80gsm paper you are likely to burn holes through it depending on how much the laser dwells in the one spot and what power level you are using. That is why I tried 150gsm card.

Despite my terrible photography the greyscale image came out like a photo. As mentioned earlier I am yet to try wood, leather or acrylic materials.

Needless to say I am impressed at what the Snapmaker can do.

Doug


#22

@doug - can you share your settings for image. work speed (mm/min) , dwell time(ms/pixel), quality (pix/mm) - and laser power


#23

Hi @gjo

All the standard settings except;

Algorithm: Stucki
Dwell: 30
Laser Power: 90% ((note this applies to my Snapmaker and I understand it varies between Snapmakers)
The image size was 50x62mm

The print took 4hrs 45mins

I hope this helps you, keep having fun

Doug


#24

Hello Team,

I would like to buy a Snapmaker to print QR-Codes on Key-Chains. The material will be leather and it will have a size of 2x2 cm. Does the laser engraving have a high enough quality so that it will be possible to scan the QR-code with a smartphone?

I am thankful for any kind of experience you can share.

Thank you for your support. Jan


#25

@jan_ka
I’m pretty sure this will work when you are able to do this with an ink jet printer (of course on paper)!
Currently I’m in 2 print jobs (I have 2 Snapmakers) but I will make a test for you on wood when you send me the file.

Michael


#26

@jan_ka
Hi Jan
It works like a charm!
I’ve created my own test with Inkscape (PNG export 265x265px @ 96dpi) - set to 20x20 mm in Snapmakerjs:

QR

My prints with 100%, 50% and 33% of the 200mW laser power @ 220 mm/min on plywood:

The results (all 3 QR-codes are working):

PS: The one with 100% was a slightly different text…a little bit burnt but it works too.


#27

Hello Team,
this is really great collaboration. Looks super good.
One last question: Did one of you ever print on leather? Is the quality like on wood?
Best,
Jan


#28

Dear Jan
I allready saw something in this forum.
For example here:

Michael