I carved this skull out of 6 gallons of epoxy resin and Walnut Burl. I then tried to duplicate the skull by casting it in silicone and making a mold of the wood section but that turned out to be ...

The support struts on the outside of the skull required for 3D printing can be removed after the resin has cured. Finally, they are filled with insulating foam to simulate the brain mass. In the ETH ...