This document discusses the benefits of introducing a 3D printing lab in a business school. It argues that such a lab would allow students to quickly and cheaply prototype product designs, closing the gap between designers/engineers and entrepreneurs. With access to 3D printing, students could produce high-quality minimum viable products in days rather than months, transforming entrepreneurs into better designers through an iterative customer discovery process. The document predicts that within 5 years all schools will have 3D printing labs, just as all schools gained computer labs in the 1980s, once their benefits became clear.