Beginner' Guide on How to Do Acrylic Etching with a Laser ...
Generally speaking, you want to move the laser quickly across the acrylic with a low to medium power level. Remember, whatever you etch is what will show up. So, for photos, you want to make a negative image. This etches the lights instead of the darks in your photo, making it viewable at any angle rather than needing a reflection from the front.