3D Printering: Pastestruders

printering

While bits of plastic are the usual material for 3D printers, there are hundreds of other materials that are equally well suited for 3D printing. One of the most famous is chocolate, a material so popular and easy to manipulate inside an extruder there are even Kickstarters for 3D printed chocolate bars.

teapotThere are many more materials deserving of being 3D printed, though: wax for lost wax castings, other foodstuffs for improbably shaped edibles, and ceramics so I can finally print a life-sized, functional version of the Utah Teapot.

Unfortunately, for all the progress of plastic extrusion, little has been done about extruding pastes, foods, and clay with a 3D printer. The RepRap paste extrusion working group is fairly close to being dead, so let this volume of 3D Printering explore what has been done in the world of paste printing.

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