A group of Spanish designers has used 3D printing to design and build an installation that creates art from water. The "water curtain," now on display at the Temps de Flors flower festival in Girona, Spain, utilizes 3D printed valves and nozzles controlled by Arduinos to display images of words, flowers and patterns within a sheet of continuously falling water - to stunning effect. Read more about how they did it and see it for yourself at 3DPrint.com: https://3dprint.com/133971/3d-print-...rtain-flowers/