: Audi and Porsche use 3D printing for specialized jigs, fixtures, and even end-use parts like steering wheels. 3. Entrepreneurs & Side-Hustlers

Large corporations buy industrial-grade machines that can cost hundreds of thousands of dollars.

: Dental labs and medical providers use them for patient-specific implants and surgical planning.

A growing segment of "desktop" printer buyers are starting home-based businesses. How to build a 3D Printing Business Out of Your Bedroom

: Companies like Airbus and NASA print flight-ready, lightweight metal parts that are impossible to make with traditional tools.