3D Laser Engraving Machine Hello everybody! Do anybody know projects for making 3D laser engraving machine? [www.youtube.com] https://reprap.org/forum/read.php?1,805486,805486#msg-805486 Wed, 22 Jul 2026 16:46:57 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?1,805486,816339#msg-816339 Re: 3D Laser Engraving Machine https://reprap.org/forum/read.php?1,805486,816339#msg-816339 VDX General Wed, 28 Mar 2018 02:37:02 -0400 https://reprap.org/forum/read.php?1,805486,816328#msg-816328 Re: 3D Laser Engraving Machine https://reprap.org/forum/read.php?1,805486,816328#msg-816328
Quote
cozmicray
What do you want to engrave?

Glass --- tough -- need high power and the right frequencies

see

J Tech Photonics, Inc. designs and develops high power diode lasers solutions for research, industrial, and enthusiast applications.

[jtechphotonics.com]

Shapeoko laser forum

[www.shapeoko.com]

:S
I want to engrave inside glass.
In first URL, I didn't find lasers, which power is more than 20W. VDX wrote me about power of laser in previous posts.

I found power supply for YAG laser:
[www.ebay.com]
Seller sent me some electric schematics (see attachments):
[www.ebay.com]
Maybe I just find a laser head?
For example this one:
[www.ebay.com]
Seller wrote, that it's 1064nm laser head of 50-200W.]]> Nathan_T General Tue, 27 Mar 2018 19:33:53 -0400 https://reprap.org/forum/read.php?1,805486,814141#msg-814141 Re: 3D Laser Engraving Machine https://reprap.org/forum/read.php?1,805486,814141#msg-814141
Glass --- tough -- need high power and the right frequencies

see

J Tech Photonics, Inc. designs and develops high power diode lasers solutions for research, industrial, and enthusiast applications.

[jtechphotonics.com]

Shapeoko laser forum

[www.shapeoko.com]

:S]]> cozmicray General Mon, 12 Mar 2018 19:36:28 -0400 https://reprap.org/forum/read.php?1,805486,813989#msg-813989 Re: 3D Laser Engraving Machine https://reprap.org/forum/read.php?1,805486,813989#msg-813989 VDX General Sun, 11 Mar 2018 20:44:15 -0400 https://reprap.org/forum/read.php?1,805486,813977#msg-813977 Re: 3D Laser Engraving Machine https://reprap.org/forum/read.php?1,805486,813977#msg-813977 [www.ebay.com]
I asked seller two times about characteristics of this laser, but he didn't answer me.]]> Nathan_T General Sun, 11 Mar 2018 19:34:09 -0400 https://reprap.org/forum/read.php?1,805486,810752#msg-810752 Re: 3D Laser Engraving Machine https://reprap.org/forum/read.php?1,805486,810752#msg-810752 www.findlight.net]

3 (or 5?) Watts of green (532nm) on a spot of 0.05mm would be enough to engrave dark plastic or other good absorbing materials, but for engraving inside glass you'll need much higher energy densities! This is mostly done with pulsed lasers, where the "averaged" power is in the range of 20 to 60Watts, but the peak pulse energy is above some Kilowatts!

The laser in your second link has not 10 Watts, but only 0,5Watts! - look on the stated power in the second image ...]]> VDX General Sat, 17 Feb 2018 18:30:15 -0500 https://reprap.org/forum/read.php?1,805486,810736#msg-810736 Re: 3D Laser Engraving Machine https://reprap.org/forum/read.php?1,805486,810736#msg-810736 [www.ebay.com]
Also not enough power and energy density for engraving?


2. [www.ebay.com]
Does not fit wavelength of laser?]]> Nathan_T General Sat, 17 Feb 2018 16:53:07 -0500 https://reprap.org/forum/read.php?1,805486,809886#msg-809886 Re: 3D Laser Engraving Machine https://reprap.org/forum/read.php?1,805486,809886#msg-809886 VDX General Sun, 11 Feb 2018 18:49:07 -0500 https://reprap.org/forum/read.php?1,805486,809884#msg-809884 Re: 3D Laser Engraving Machine https://reprap.org/forum/read.php?1,805486,809884#msg-809884 What can you say about this laser:
[www.ebay.com]

There is information about laser, what I found (in pdf file).
Does it suit for 3d engraving?]]> Nathan_T General Sun, 11 Feb 2018 18:24:05 -0500 https://reprap.org/forum/read.php?1,805486,805599#msg-805599 Re: 3D Laser Engraving Machine https://reprap.org/forum/read.php?1,805486,805599#msg-805599 forums.reprap.org]

For 3D-marking inside of glass or other transparent materials you'll need even more power (or better energy density).

Maybe you can create some cracks inside of acrylic with one of the blue 6Watt-diodes with a "spot-creator", which will symmetrize the bad beam quality of the 6W-diode, so it can be focussed much better.

But for glass you'll need a pulsed laser with "peak energies" of some hundred Watts on a spot smaller 0,05mm diameter!]]> VDX General Sun, 14 Jan 2018 15:16:47 -0500 https://reprap.org/forum/read.php?1,805486,805587#msg-805587 Re: 3D Laser Engraving Machine https://reprap.org/forum/read.php?1,805486,805587#msg-805587 Why go with a 200mw laser when you can have one of these.

1000mW~1200mW 450nm 445nmBlue Laser Module

High Power 2.5W 450nm Blue Laser Module TTL 12V Carving free Goggles

or for a little more this one

6W+ Laser Engraving Module]]> Roberts_Clif General Sun, 14 Jan 2018 14:08:45 -0500 https://reprap.org/forum/read.php?1,805486,805585#msg-805585 Re: 3D Laser Engraving Machine https://reprap.org/forum/read.php?1,805486,805585#msg-805585 [www.ebay.com]
If I know focal distance between focal plane and lens, I can make surface from dots. I understand that it will be too slow without XY-galvoscanners.]]> Nathan_T General Sun, 14 Jan 2018 13:48:59 -0500 https://reprap.org/forum/read.php?1,805486,805556#msg-805556 Re: 3D Laser Engraving Machine https://reprap.org/forum/read.php?1,805486,805556#msg-805556
Quote
Nathan_T
Did you accept the message as spam because there is a link to the seller?

... first post and a (possible comercial) link is the typical apperance of SEO-spammers (SEO = Search Engine Optimisation).

So if not for spamming, welcome!

The Nd:YAG-laser in your link is not frequency-doubled! - you can't mark inside glass with the 1064nm ... you'll need 532nm, what's the green in your first yt-link.

And this "frequency-doubling" is a totally different business ...]]> VDX General Sun, 14 Jan 2018 11:25:49 -0500 https://reprap.org/forum/read.php?1,805486,805552#msg-805552 Re: 3D Laser Engraving Machine https://reprap.org/forum/read.php?1,805486,805552#msg-805552 So, I should use this YAG laser (for example):
[www.ebay.com]]]> Nathan_T General Sun, 14 Jan 2018 11:10:50 -0500 https://reprap.org/forum/read.php?1,805486,805499#msg-805499 Re: 3D Laser Engraving Machine https://reprap.org/forum/read.php?1,805486,805499#msg-805499
Otherwise - this are frequency-doubled NdYAG or fiberlasers with XY-galvoscanners, so a bit above actual DIY-priceranges ...]]> VDX General Sun, 14 Jan 2018 06:25:52 -0500 https://reprap.org/forum/read.php?1,805486,805486#msg-805486 3D Laser Engraving Machine https://reprap.org/forum/read.php?1,805486,805486#msg-805486 [www.youtube.com]]]> Nathan_T General Sun, 14 Jan 2018 05:30:26 -0500