Robot to 3D print a steel bridge

Dutch startup company MX3D plans to build the world’s first 3D printed bridge across an Amsterdam canal. The company hopes the technique could become standard on future construction projects. The multi-axis technique works by 3D printing metal that melts then solidifies within a second. Aided by the geometry of the overall bridge design, the strength of the metal, and support from the edge of the canal and the robot, the material is able to print horizontally without bending and falling into the water.