This is super cool. Admittedly, I know nothing about creating concrete figures -- I imagine the real artistic work is in creating the mold? Can you share how that is done -- is a sculpture created and then surrounded by the mold material?
1. I hire a 3d designer to create the 3d model I want. For example, I send him a couple of photos of Alan Turing
2. After I am happy with the likeness, I 3d print it. In this phase the 3d model comes to life and it's usually quite different from what we see on the computer as a 3d model. It has something to do with the difference in perspectives in which the designer designs shapes and in which we observe the item when it's produced as a real physical shape. This is very hard to get it right. Then we repeat the steps from 1 until I am happy with the likeness and the facial expression (this can be many iterations)
3. When I have the 3d printed positive, I create a mold using silicone rubber
4. The 2-part mold is then ready to be used for hundreds of castings (I use concrete)
