See complete coverage of Demo Traction 2015

Watch Now

7 high-speed videos of a 3D printer in action

Curious about how a 3D printer really works? Now you can see one printing everything from Lego-style bricks to a model Eiffel Tower (plus a failed try at a human skull).

Return to slideshow
Join the discussion
Be the first to comment on this article. Our Commenting Policies