Full Version: Glass lasering
From: logojohn [#11]
27 Mar 2007
To: JimK (JUSTTHE4OFUS) [#1] 27 Mar 2007
If you get flaking, many times you can still save the piece with a few minutes work.
Usually that means there was too much power so there likely will be a fairly deep etch underneath. I just use the corner of a razor blade or exacto kniffe and chip away. I am left with a smooth looking but frosted layer that was under the flaking.
Hints given so far are good and a couple more.
lighter gray, not solid black lettering or graphics
use photo mode in the laser driver
slow speed and high power which varies my machine
thin film of manual dishwashing liquid without paper overlay
air assist on
From: JimK (JUSTTHE4OFUS) [#12]
27 Mar 2007
To: logojohn [#11] 27 Mar 2007
lj,
Great stuff, I think this will help immensely.
Thanks!
Jim
From: Harvey only (HARVEY-ONLY) [#13]
30 Mar 2007
To: JimK (JUSTTHE4OFUS) [#12] 30 Mar 2007
I find that the highest resolution and lpi give the best result. That said, I cannot do a picture without some flaking at some density of the image. Vary the power and the greyness of the flaking area changes.
I have also done text by blasting away and leaving a carved look with no fracturing flakes.
Glass varies spot to spot. I even had an egg cup with a line of water glass in it. (The potash never made it to that spot in the mix. Leave out the potash and it dissolves in water.)