This High-Tech Pen Can Draw 3-D Objects in Thin Air By Eva Hill and Cait Munro It’s a pen-shaped 3D printer, and it only costs $139. Not bad if you’ve got the skills to make some of this stuff with it. Produced by Eva Hill, written by Cait Munro. Read More Tags: original video 3d printing gadgets select all May 17, 2016 Watch Now Would You Volunteer to be Infected With COVID-19? How Epidemics Made NYC Better The Story of a Coronavirus Infection High-Tech Pen Can Draw 3-D Objects in Thin Air