After I forge the billet from 1084 H/C steel and 15n20 -sometimes link chain, I forge it to an almost white color and then send it to the trip hammer. From there I grind down the "finished" billet on a surface grinder to approx. 1/4" to 3/16" depending on the size of blade. I then profile the blade into the style I'm after and grind the edge (usually a hollow grind on a 10 inch diameter 2" x 72" belt sander. It's critical to mark the edge of the blade using layout bluing to find the dead center of your blade and scribe that line. Once you find that dead center line, you plunge your blade on the belt grinder and grind to that line on both sides so its an even grind on both sides of the blade.....I'm old now and I actually practice on wood paint sticks awhile before I do my grind to ensure I don't foul up a nice piece of Damascus. I then sand the knife to a 600 -800 grit finish. Once that is done, I place the blade in 120 degree ferric chloride. I do this three times with the etchant increased in temperature by 15 degrees each time. This etching is what reveals the pattern you see in the blades. The patterns are varied by how the billet is either cut , twisted or folded in the initial process on the trip hammer and anvil. I've never taken photos of the process (wish I had) but, the time frame is critical in making this steel, you usually have approx. 17 seconds of good hammer time before your start losing working heat.....warming your anvil up helps prevent heat being drawn from your work too...