Three-dimensional printing is tough. That is, if you don’t make one out of LEGOs. Gene Hacker posted his creation on Instructables: a 3-D printer made out of LEGO bricks. It’s still in its infancy of development but is more than capable of rendering 3-D blobs of frosting.
Unlike regular Cartesian system printers, the one Gene built operates in polar coordinates, in other words, a circular motion of printing. When asked why he didn’t build a Cartesian system printer (similar to the LEGO scanner), he replied,
“I didn’t have enough LEGOs to build a Cartesian printer.”
Now, that’s funny.