Sculpting
Most miniatures are hand sculpted using two-component epoxy putties in the same size as the final figure. The components of the putty are mixed together to create a sculpting compound that hardens over 48 hours. Some common brands include Polymerics Kneadatite blue\yellow (also known as "green stuff" and "Duro" in Europe), Milliput, A&B, Magic sculp, and Kraftmark's ProCreate.
Until recently, sculptors avoided polymer clays as they cannot withstand the traditional mouldmaking process. Modern techniques using RTV silicone and softer-quality rubbers have made it possible to use weaker materials, so that polymer clay masters have become more common. Fimo clay is popular, though due to the individual properties of certain colours, only a limited selection of colours is used.
Masters for plastic miniatures are often made in a larger scale, often three times the required size. The master is measured with a probe linked to a pantograph that reduces the measurements to the correct size and drives the cutter that makes the moulds.
A more recent development is the use of digital 3D models made by computer artists. These digital models create a physical model for mouldmaking using rapid prototyping techniques. Alternatively, they can be used directly to drive a computer numerical control machine that cuts the steel mould.
Read more about this topic: Miniature Figure (gaming)