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Slightly off-topic, but does anyone know anything about the 3D printing tech used by http://www.shapeways.com/ ? Limited materials are the one thing holding me back from picking up a desktop 3D printer, so I'd like to learn more about their tech and what might be holding it back on the desktop. Their material selection is seriously impressive.

The Formlabs one looks promising and I love the design, but I just don't have any interest in printing PLA/resin.

The materials pages discuss the various processes they use:


A lot of the processes involve replacing a temporary binder.

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