Einstein Pewter Remix Reverse Mold Maker

thingiverse

I wanted to craft a Pewter version of Lloyd Chidgzey's remarkable Albert Einstein bust. The PLA plastic we use in 3D printing can't handle the scorching temperatures of molten Pewter, which reaches around 400 degrees Fahrenheit. To overcome this challenge, I designed some 3D printable files that make it simple to create a high-temperature two-part mold. The two 3D printed parts form 'reverse-molds.' Once they're printed, high-temperature silicone can be poured directly into the printed 'reverse-molds' to create a two-part silicone direct-mold. After the silicone cures, the two halves can be separated using 'break-away' walls. The two mold halves are then clamped together and liquid Pewter is poured through the funnel port while trapped air escapes through five air-release ports. The printed part features provisions for perfectly splitting the statue, a molten Pewter pouring funnel, five air release points, and a retaining channel for alignment and containment. Once the Pewter cools down, light grinding and light wire-brushing were used to bring out its luster. The finished statue is