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This looks quite interesting. I am not much informed of it. Can anyone share an overview of the technology underneath? Also what kind of things it can print, what and how much the raw material would cost?

Also the page show the image of a sandal in free creations section. Would it be possible use it as an actual footwear?

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If they're using PLA or ABS, I don't think footwear usable due to comfort. (ABS is the same plastic that Legos are made of, so imagine how inflexible they would be, and PLA is going to be similar)

Given that the build envelope is only 5.5 cubic inches, I also don't think you could actually make adult size footwear.

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