ENGRAVING ON GLASS SHEET DIFFICULTY

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SPUTNIK
Posts: 2
Joined: Sun Jun 28, 2020 8:50 am

ENGRAVING ON GLASS SHEET DIFFICULTY

Post by SPUTNIK »

I have built a laser with a 450nm blue laser with 15W power which I intend to use to engrave machine name plates, anodized parts and over some glass sheets. what I do is I usually do test cuts on the material I wish to do engraving in the following way.

I engrave horizontal lines 25 mm long with different laser powers, usually starting with S100 laser power (possibly 1.5W) and incrementing S200, S300....
up to S1000 (reaching the 15W power) this would show the cutting result of various intensities on the material at constant speed. Several tests like these with various speeds will indicate the best parameters to use.

I have several difficulties but will start with the one I have in hand. I am trying to engrave on a 3mm glass pane. The laser has a steel plate which is painted black to which I attach magnets to hold my work piece. I have tried putting Blue painters tape, sheets of paper sprayed with water.

What is happening is that the paper or tape is being burnt and the laser is also engraving on the black painted steel plate under the sheet of glass. Seems that the laser power is going through the glass and not being directed on the glass itself. What might be doing wrong?
many thanks for any lead.
engrave78
Posts: 6
Joined: Fri Mar 13, 2020 12:24 pm

Re: ENGRAVING ON GLASS SHEET DIFFICULTY

Post by engrave78 »

I don't know what can cause this problem for you. For glass engraving i use UV Laser Marking Machine and it works perfect specially when i do engraving of various drawings on iron and glassware.
emma12
Posts: 1
Joined: Wed Sep 16, 2020 9:19 am

Re: ENGRAVING ON GLASS SHEET DIFFICULTY

Post by emma12 »

hi, I am from Australia. I was having facing same problem in engraving glass sheet sets. but now like engrave i am also using UV Laser Marking Machine and now it works perfectly.

I have recently buy a sheets to cover my machine at night it helped a lot because I never found suitable sheets to cover it. You can also have best online sheet sets Australia
Last edited by emma12 on Thu Sep 24, 2020 10:15 am, edited 1 time in total.
SPUTNIK
Posts: 2
Joined: Sun Jun 28, 2020 8:50 am

Re: ENGRAVING ON GLASS SHEET DIFFICULTY

Post by SPUTNIK »

can you give some detail how you are doing this?
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