A 3D - printed steel bridge set to be built over a canal in the city of Amsterdam has been unveiled by robotics start - up MX3D. The firm worked with designer Joris Laarman to construct the 30 m - long and 6 m - wide steel pedestrian bridge , which was previewed at Dutch Design Week . It was constructed from layers of molten steel by six - axis robots , which used robotic arms to operate large welding machines . " To add to its high-tech design, mathematicians from The Alan Turing Institute and engineers at Arup worked with MX3D to create a smart sensor network on the bridge. MX3D initially proposed to build the bridge on - site , although this idea was abandoned for being " too dangerous " and over budget .
A 3D - printed steel bridge set to be built over a canal in the city of Amsterdam has been unveiled by robotics start - up MX3D. The firm worked with designer Joris Laarman to construct the 30 m - long and 6 m - wide steel pedestrian bridge , which was previewed at Dutch Design Week . It was constructed from layers of molten steel by six - axis robots , which used robotic arms to operate large welding machines . MX3D initially proposed to build the bridge on - site , although this idea was abandoned for being " too dangerous " and over budget .