Show some recent work
Show some recent work
Out of context: Reply #8455
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- stewart4
I am engraving glass with laser. It's still pretty rough, I want a nice matte and smooth surface. So I continue to experiment. Anyone experience with this?
I think it would be nice to have a customer photograph a set table on a superyacht with my luxuriously engraved wine glasses.
- Hard to tell, but it does look a little like the laser was out of focus. A lt of the quality is down to the type of actual glass - unfortunately some ...Nairn
- ...some don't etch well. Are you doing these yourself? If so, try making the design ~75% black (ie dark grey) then etching with a noise-like dither...Nairn
- ...that can help mimic the 'sand-blasted' look.Nairn
- If you are doing these yourself, you need a sacrifice glass that you do loads of tests on before committing.Nairn
- 8 wine glasses so far. Two of them are ready for a client. Can't show the result with logo here.stewart
- Thanks for the tips Nairm, very helpful.stewart
- The thing glass doesn't like is large swathes of '100% black' lasering, as that will make it 'chip' as in the problem I think you're highlighting,Nairn
- So dithering it in a dark grey 'breaks up', the swathes a bitNairn
- Yes, next time I'll try max 70% black, and after that convert the file to 500dpi bitmap with diffusion dither.stewart
- Why not engrave glass with acid paste?cannonball1978
- Cannonball, don't know the technique, but I aim for batches of 200 glasses per order.stewart
- Oh! Actually, sorry - that's another thing - reduce the dpi! I do most stuff at 600dpi, but glass etching at 400dpi.Nairn
- It doesnt make the glass weaker?drgs
- Probably, in an absolute sense, as we're breaking up the tougher outer, shell, but this isn't a Prince Rupert's drop - they remain strong enough for useNairn
- if i had to guess, i'd suspect lasering would be less damaging than sand-blasted equivalent as there's at least a little sintering melty-melty going onNairn