I have created Japanese Joinery cast in glass. The process goes from 3D model to 3D print to rubber mold to wax to plaster silica and finally glass.
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Nejire-kumi-tsguite
Credit: Rebecca Erde
Nejire-kumi-tsguite
Credit: Rebecca Erde
Nejire-kumi-tsguite rubber mold
Credit: Rebecca Erde
Nejire-kumi-tsguite plaster silica mold
Credit: Rebecca Erde
Shihou-hozo-tsguite
Credit: Rebecca Erde
Kawai-tsguite joint mold
Credit: Rebecca Erde
Kawai-tsuguite in two orientations
Credit: Rebecca Erde
Kawai-tsuguite in one orientation
Credit: Rebecca Erde
Simple Dovetail in Glass
View the full project here
Source: core77