It uses three robotic arms to lay down metal prints of remarkable size, around eight meters wide and six meters tall. It can churn through about 50 kg of metal per hour, and can be run off of a ...

David Gatlin found a way to get rid of ants nests and create beautiful art at the same time: he pours 1,400-degree molten aluminum into them. When the metal dries, it creates an intricate sculpture.