U.S. researchers have developed a camera chip that could give smartphones the ability to take 3D scans of everyday objects, a sought-after feature in the 3D-printing world. Engineers at the California ...

It seems to make sense. If you have a 3D printer, you might wish you could just scan some kind of part and print it — sort of like a 3D photocopier. Every time we think about this, though, we watch a ...