1. First I start with an image. it can be most aything, though I need something that will give me a nice stark black and white image. The more pixles the better. This particular picture is of my cat when I first got him - he was scared and hiding in the bathtub.
2. I use Photoshop to enhance the image and get the details and look that I want. I am not good with Photoshop so sometimes it takes a while. I need to end up with a pure black and pure white image.
​​3. This image is then printed on vellum. At this point I can print mutiple sizes. I have a solution that darkens the image so I let that dry. As you can see I inverted the image but should not have (see final image). The important thing is that where the vellum is black, the sandblaster will carve into the glass.
4. I expose a special "photo-resist" film to a UV light in a darkroom, using the vellum as a negative. Where the light hits the film, the light areas, it get tough. The rest of it will then wash out when I spray it for a few minutes with water. I let it dry then have to wet it again to stick it to the glass. There is a backing film that is then peeled off and then I have to smooth it back out and get little bubbles out. This can be a pain in the "buttocks". I let it dry again.
5. Sandblasting. As you may have seen in the shop photos, I am using a fairly basic pressure-pot type of sandblaster. The unit I use was really built to remove rust from tractor parts or whatever and I also have a fairly small compressor. Getting the sandblaster "dialed in" was not easy. Too much air can peel the resist off even without much sand and hardly scratch the glass. Too much sand and not enough air clogs it up. Too much of both blasts right through the resist. Getting it all balanced took a while, wasted a lot of materials and nearly made me quit the whole thing. Oh yeah, at first I didn't have the dust collector - NIGHTMARE! Even now I have to be careful as it can still ruin the piece pretty quickly if something goes wrong and it is hard to see what I'm doing. Oddly it's also the most fun part. 
6. Paint #1 Rinse the sandy dust off and let it dry again. With the resist still on, paint the blasted parts. Normally, I would paint the lighter parts now because the texture from the sandblasting shows up pretty well with the metallic paints. It basically shows up not at all with black which is why I consider this one "backwards". Still illustrative for this. Once the paint dries I can scrape off the resist. Because the paint is now sitting in the carved-out part, the razor should glide right over without scratching it.

7. I can can then paint the background and, of course let it dry again. You probably noticed the cat is facing the other way. That's because now we're looking at the front, nice smooth shiny side, .