Prepare to have your mind blown as bridge is 3D-printed over Dutch canal

A 3D printing company, MX3D based in the Netherlands is planning to print a 3D bridge over a canal in the center of Amsterdam. The inventors created a robotic structure that can fully rotate to print the fast-setting metal structures in all directions. As the designers say, "It was like drawing in mid-air."

The robots will print the bridge using molten metal to create lines of steel. By printing multiple lines at once, like weaving a basket, the printer will be able to create a bridge long enough to span the length of the canal.

Construction starts in September of 2015, and MX3D will announce the exact location soon, although it's unclear how long the bridge will take to print.