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February 6, 2014 AT 4:00 am

#3DxBeMine – Hidden Heart Espresso Cup by danieljchamberlin #3DThursday #3DPrinting #3D

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Hidden Heart Espresso Cup by danieljchamberlin, on Shapeways:

Perfect for Valentine’s Day (or any other day needing a little heart), The Hidden Heart Espresso Cup reveals a perfect heart shape when a double shot of espresso is poured into it. Because of its complex contours, this hidden shape can’t be made with traditional molds or normal ceramic fabrication processes. Food-safe in Glazed Ceramics, and 2 make a perfect couple!

More about why complex shapes are difficult in ceramic:

Ceramic is usually either spun or poured into 2 part molds, but there are several limitations to this. With a spun piece (think pottery wheel), you can only easily make symmetrical shapes, and then if you want alter them a little bit from the outside. With a mold, you can make more complicated shapes but to be able to remove it from the mold, you can’t have any contours that overhang (the underside, like a cliff, will get caught on the mold and you won’t be able to pull it out). This is usually what’s called draft….

Read more.

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