Amsterdam already has over 1,200 bridges throughout its canals, with some dating as far back as the 17th century, but the city is about to add one more in correspondence with its growing 3D printing industry. Dutch start-up MX3D has partnered with Joris Laarman Lab, Heijmans, Autodesk, and several other supporters, in a collaboration that will create an intricate steel pedestrian bridge made by 3D printers.