In order to print something on a 3D printer, you have to have a 3D model that's in a file format your printer understands. At the high level, where you start from scratch and build something from nothing, you'll certainly need to have some technical skill, but you can easily design basic objects quickly by using one of the several free or low-cost software applications available. "When we started, there wasn't much that was available that people could use to get into it," Pettis says. "Now there's plenty of stuff you can experiment with and get into – for free!" He recommends starting with Autodesk's free 123D, or the current version of SketchUp (it used to be Google software), which is simple enough to figure out in a few hours.
Mad Men's Charming Rogue
The man who played Roger Sterling, is moving on – surfing in Montauk, hanging with his son, and directing a feature film.
Plus: Greenpeace's High-Seas Avenger
ON NEWSSTANDS NOW
What's on John Slattery's Mind
Willem Dafoe's Life Advice
Sign up to receive the Men’s Journal newsletter and special offers from MJ and its marketing partners.