I wasted half of my day playing with granite today. A customer is threatening to come in this week for some granite photo engraving. I finally got it sorted using Corel Draw and my Universal laser cutter. I ended up with 100% power and 50% speed with my 60 watts. It took 30 minutes to engrave a 300x300mm granite tile at density 3. It was the cheap kind of tile with lots of flecks in it. I am sure a super black tile would have been much easier but they are very expensive here.
Here are a couple of pictures. As usual I am keen on constructive feedback The big question I have is what is the durability of these engraved granite tiles? Will they damage, fade and wear? Do I need to protect it with a coating etc.
marylin_sm.jpg
And zoomed in to see the detail of the image processing
marylin_zm_sm.jpg
Cheers
Keith