Each design starts off as an idea that becomes more visually realized using a digital modeling software known as Fusion 360.
If the digital model looks, feels and promotes the expected function, it moves onto the 3D printing phase of the process. Layers of spray paint are applied and then I sand that down until the surface is acceptable. This will be the master copy, so every casting thereafter will look the same as this one, including any flaws it may carry.
When working with cement, molds are made using digitally printed and designed mold walls to achieve exact and uniform rubber thickness. When working with clay, plaster is used to later contribute to the slip casting process.