Some people play with Lego blocks. Others create awesome and amazing innovations that most of us could only dream of. This story is a fine example of the latter.

Matthew Kreuger, an engineering student on a limited budget, was fascinated with the new 3D printers on the market. But his lack of funds meant that he couldn't exactly fork out the thousands he needed to purchase one. So Kreuger did what any creative engineering student would do. He built his own 3D printer out of stuff he had laying around the house — specifically, Lego blocks. Here's how Kreuger explained his project on Instructables:

"This is a project I have been working on for the past year, it prints in hot glue and made almost completely out of legos.  Based roughly on the first version of the makerbot, while it does print, I would call this more of a prototype than a finished project."