Founded by a Brooklyn-based hackerspace, MakerBot Industries aims to promote the DIY manufacturing movement by producing affordable 3D printers that allow people to create almost any plastic object. CupCake CNC is the company’s main product. Made from a 100% open source design that can be freely downloaded, the CupCake takes digital design files as its input and produces 3D objects by building up layers of plastic. The machine is sold as a flat-pack kit that can be assembled by two people in a couple of days. It can even make its own replacement parts. Tinkerers can create their own designs from scratch using CAD software, or download a design file from Thingiverse, an online repository for the sharing of open source MakerBot designs.