Two Color Tile Burn - Black on green and black on orange

I am playing with a technique of tile etching where you paint a tile with a color and then cover that with black paint. Using the laser, you burn away some of the black to reveal an image of the color below.


I am starting with florescent green and orange as my base color and then covering with black. I found that 3,000 mm/min at 50% power on my Genmitsu 5,500mW LED laser, LE5040, from SainSmart (https://www.sainsmart.com/collections...) works well.


I was inspired by a project done on the 3DPrintFarm channel (   • How to Make Money with a Desktop Laser!  ). Go check out what Garret is going on his channel. He is mainly doing 3D printing things. That doesn't keep him from busting out his laser and burning stuff.