Pettis had begun his ascent in 2006, producing weekly videos for MAKE magazine—the maker movement’s Bible—that featured him navigating goofy tasks such as powering a light bulb with a modified hamster wheel. In 2008, he cofounded the NYC Resistor hackerspace in Brooklyn. By then, Pettis was a star. A year later, he launched a Brooklyn-based startup with friends Adam Mayer and Zach Smith (also a NYC Resistor cofounder) called MakerBot. ... By 2015, Pettis, Mayer, and Smith had all moved on. A new CEO and management team has taken the helm since then, and three rounds of layoffs cut the employee head count from a high of around 600 to about half that. This year a Taiwanese competitor nabbed MakerBot’s spot as the most popular desktop 3D printer maker. ... How did MakerBot, the darling of the 3D printing industry, fall so hard and seemingly so fast?