3Doodler 3D printing pen

Among all the 3D printers at CES this year, what caught our eye was a 3D printing pen. Making 3D

printing even easier, 3Doodler has allows freehand drawing of 3D objects. It “looks” as simple as

using a sketch pen or crayon. The 3D pen began as a Kickstarter project, the company has already

shipped 20,000 such pens to all those who contributed to the project. It works by heating and

melting corn-based plastic that cools off immediately. It’s a bit like sketching in the air.