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

The Studprint printer uses a $30 budget for LEGO pieces, which make up the majority of its structure. The remaining 13 non-LEGO parts include the printer's leadscrews and print bed.

Turaj's project was inspired by the Hack Club challenge called Infill, which called for makers to design their own 3D printers from scratch. The challenge offered a $350 grant to the winner.

Adam Turaj presented Studprint to over 4,000 people at the Rocky Mountain RepRap Festival 2026, where he also met Prusa CMO Zack Freedman.