Mechatronics student builds 3D printer made from 92% LEGO for less than $180

University of Waterloo mechatronics student Adam Turaj built an open-source 3D printer made 92% from LEGO, using just 13 non-LEGO parts. The Studprint cost $173.35 to assemble, including about $30 in LEGO bricks, and can print a Benchy in 1.25 hours. Turaj designed it in SOLIDWORKS for a maker challenge and presented the project at the Rocky Mountain RepRap Festival.