At the Hofstra University library, stands twisted plastic that was, by engineering standards ... people could walk underneath," Zhang said. Her 3D-printed mesh creation was supposed to form ...

schematic symbols, and 3D models for more than 1.1 million components. These design resources work seamlessly with top engineering CAD systems, including Cadence, Altium and other programs.

Teenage Engineering launched its Ikea Frekvens line of speakers and home items earlier this year, and now the company is offering free 3D printing files so customers can create their own Ikea hacks.