$5 12"/12"/.35" polished granite tile found at HD. Found the image here here with some manual adjustment in GIMP. Took about 1hr 40m all told and I’m really happy with the results. Tried earlier with masking but couldn’t finagle the settings to make it look good.
Super heavy and awesome looking! Inspired heavily by Map on slate - next up is exporting shape files in tilemill and getting more modern road maps.
It engraved that way. I’m pretty sure it just blasted through the polish (I can’t imagine that if I did the other side that was unfinished it would be better). I won’t veer into settings but I tried masking with more power and it basically didn’t turn out well at all. I’m going to do more tests so I can potentially spraypaint and then remove the masking
Hmm, granite likes to crack, it’s possible that you cracked the surface like a glass engrave. I don’t want to mess my pristine flat surface up, so I am not of much use
Very nice detail in that!
My experience in lapidary from jewelry taught me a polished surface deepens the color, so it wouldn’t have as great a contrast on the back.
I’m located in Lone Tree, the far south of the metropolitan (Park Meadows) area. Perhaps we could collaborate sometime over a beer, or even a ‘glowfest’ with others in the area.
Thanks for sharing that result
I don’t think so. I’ve been playing with the same granite tile for a project I’m working on. It ablates the rock. More power, more gray color and it washes over so a low power engrave shows a lot of unmolested granite but more power with the same DPI & GF LPI shows more gray/whiteish to a point. A low power etch may show a lot of untouched granite color and a high one a lot. A box may only show a little or even no white when engraved with low power but once you get to a rather low power setting (a 50¢ piece for example ) and the whole box will be white.
I’ve been playing with a photo trying to get it to engrave. When it finally hits the GF it’s b&w so it’s either burning or not. A grayscale though shows the same effect.
I think it’s engraving like ceramic tiles or marble. There’s material ablation occurring which is different than glass (although I don’t have a way to do microscopic evaluation). My 12x12 tile has about 20 tests on it with different settings. (A 2x3 photo)
Very cool. Is the back of the tile pretty flat too? I bought a nice slate tile but the back was very irregular and I had to try and shim it flat before I zapped it.