I just bought a laser engraver
« on: July 21, 2020, 01:31:39 AM »
I bought a 15W laser engraver, the manufacturer says it will engrave anodized aluminum, Im not too picky, I only need to engrave labels and scales, and would also like to engrave/cut acrylic. Don't know if it will work properly, I was planning on buying a 50W engraver but they cost at least four times what I paid for mine, anyone has experience with these machines?


gyraf

Re: I just bought a laser engraver
« Reply #1 on: July 21, 2020, 03:44:27 AM »
I have played around with a 15W (blue diode-laser) for a while

It will mark black-anodized aluminum nice and white - however it must be well focused, so you end up having a VERY narrow line engraved.

In my case, wanting something like 0.2mm lines, I'd have to run 5-10 times over, just slightly shifted. But the mechanics of the unit - direct-driven from 200PPM steppers via drive belts - does simply not allow for this sort of repeatability precision. At least I haven't been able to persuade it to do it properly just yet.

A friend of mine mentioned that it might work to simply put on some jitter, engraving lines as doodles. I'll experiment with cellphone-vibrator-motors and try converting lines to spirals. Haven't gone there yet (business is finally catching up again :-) )

For acrylic, I don't think it does it - at least if it is the visible (blue) laser. Being transparent to blue, it dosen't stick :-)   Traditionally, acrylic and perspex is cut with co2-lasers

/Jakob E.

..note to self: don't let Harman run your company..

Re: I just bought a laser engraver
« Reply #2 on: July 21, 2020, 08:15:46 AM »
Hey Jakob, I'm glad to hear that it will engrave aluminum, like I said I only want scales and labels, how thin are we talking about? In the future I might get a 50W CO2 laser but spending $1K right now is not an option for me.  For acrylic I meant the dark acrylic, do you think it will work?

gyraf

Re: I just bought a laser engraver
« Reply #3 on: July 21, 2020, 08:38:31 AM »
Here's a closeup of it's work for reference.

I'd estimate it to deliver some 1/25mm per line, perhaps even thinner.

This is on anodized aluminum, it does not work well for other sorts like powdercoat etc.

In general, I think you need to try on your specific surface type to know if it makes sense..
« Last Edit: July 21, 2020, 08:41:38 AM by gyraf »
..note to self: don't let Harman run your company..

gyraf

Re: I just bought a laser engraver
« Reply #4 on: July 21, 2020, 08:39:12 AM »
..and the laser-marker itself..

/Jakob E.
..note to self: don't let Harman run your company..

Re: I just bought a laser engraver
« Reply #5 on: July 21, 2020, 09:30:59 AM »
..and the laser-marker itself..

/Jakob E.

Yeap, that looks like the one I got, I guess I will have to experiment with it, Thanks!

gyraf

Re: I just bought a laser engraver
« Reply #6 on: July 22, 2020, 04:04:27 AM »
please report back on your findings - interested..!
..note to self: don't let Harman run your company..

Re: I just bought a laser engraver
« Reply #7 on: July 22, 2020, 08:15:09 AM »
please report back on your findings - interested..!

Will do Jakob, thanks again!

Rocinante

Re: I just bought a laser engraver
« Reply #8 on: August 07, 2020, 05:32:08 PM »
Any progress?
If there's a harder way to do this, I haven't found it yet.

Re: I just bought a laser engraver
« Reply #9 on: August 07, 2020, 09:12:48 PM »
Any progress?

Hasn't arrived yet, I'll keep you posted!


Re: I just bought a laser engraver
« Reply #10 on: August 13, 2020, 12:22:47 AM »
The engraver arrived yesterday, I have to assemble the whole thing, and I need to find anodized aluminum scraps to make some tests, I'll keep you guys posted.

madreza

Re: I just bought a laser engraver
« Reply #11 on: October 13, 2020, 06:21:32 PM »
Hi :)
Also interested to have a feedback on the engraver
how did it go ?
Knight 1: We are now no longer the Knights who say Ni.
Knight 2: NI.
Other Knights: Shh...
Knight 1: We are now the Knights who say... "Ekki-Ekki-Ekki-Ekki-PTANG. Zoom-Boing. Z'nourrwringmm.


 

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