Tell us about yourself!
Ahh, I know what you mean. Look at the last photo in Step 2. That is the full resolution image of the etch layer.To be honest, I would probably skip the etch if I were to do it all over again. The etch made it hard to sand down excess epoxy resin along the boarders without worrying about sanding it entirely away. I also think that if I would have sanded the entire front surface down, the roughed up epoxy would show the blue light even when looking at it from an angle. The way it is now, you can only really see the bright blue light when you look at it straight on.Part of me wants to disassemble it and sand the entire etch layer off, but I don't have access to a laser cutter any more and I'm worried I'll ruin it >.<Those coasters look great! Good luck with the big cut!
The usa_rivers_no_small.ai file is an adobe illustrator file that has the full map. The only thing that I did when prepping it for the laser cutter was to "slice" the rivers into lots of small pieces so that it was easier to pop the pieces out after doing the big cut. In Illustrator, I created a grid of squares over top of the rivers and played around with the pathfinder menu until it broke the rivers out into chunks the size of my grid.I'd love to see some pictures of the red oak coasters!
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Simple Pour Over Coffee Stand
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Thanks for the info, I'll have to check that out. I was a bit intimidated when I first started trying to find the GIS data/tooling, and went with what was familiar.
Illuminated Waterways of the United States MapView Instructable »