this machine does the work of several construction workers it lays down the concrete in layers and can build four square meters of wall per hour that's how Europe's largest 3D printed building is being constructed an industrial building without windows site manager shike from Nigeria who's studied in Germany is happy with the progress but when you talk about sophisticated buildings like this where you have this type of um of architecture where you have with the architecture and all that and you have to create a special type of phone work for this then we are more than three times faster than conventional building there's enough Concrete in The Silo to last for two days it travels from the hose into the nozzle that runs along a track the process isn't just faster it also needs less material and fewer workers and it's cleaner than unconventional construction sites all we need to build this beautiful building you are seen here is just three people one person that operates the printer one person that oppressed the mixing machine and one person that just walks around make sure everything is good put the ankles and do other little things which is basically what I do and construction site manager ubus responsible for checking the concrete mixer he also takes care of office work on a smartphone it's a much more relaxed atmosphere than on other sites at intervals they attach anchors to support the double walls his colleague monitors the 3D printer on the computer screen but how does the 3D printer know what to print so basically the process is that the architect designs the building with our help you know we impute we tell him this is what is possible this is what is not possible then after the design it gives us the step file that is the the step file which is more like a Center Line Design of the building then will will slice it with a slice I will send this step right to a slicer then we slice it and then we get a g code then we send it to the printer and then we start to print [Music] a German company constructed the building with a bod2 3D printer made by the Danish company kobold [Music] the structures cement ceilings are being poured conventionally and are supported until the concrete dries it takes six months to build the Building 54 meters long 11 meters wide and 9 meters high the building doesn't require any Windows because it will only house computer servers [Music] the architect Jan falkman has designed the largest and highest 3D printed building ever it's made possible through the use of Steel girders a new development in 3D printer Construction open software options the special attraction is you can experiment with this construction method and find out exactly what you can create within the guidelines of some very simple architectural requirements that's not possible with any of the technology and that's what drove us the owner and developer is a real estate agent who wanted to build something new and Innovative on the landmarked site the price was high so he needed to know that it would generate a profit we invested a total of 2.5 million euros here including the land and I can't tell you what it would have cost if we had built conventionally because we switched to 3D printing relatively quickly I just wanted to know can I make it economically viable with 3D printing and I did foreign manager also has to do some work by hand especially the places where the printer stops and starts he might have to make small corrections but he doesn't ever want to go back to Conventional Construction I really don't think I will be moving back to the to the conventional console side but I mean nobody knows the future but I I really believe that um 3D printing will grow and grow higher and then with this I think I will remain with a 3D printing building with 3D printers is rapidly moving out of the experimental phase and into the commercial Market as for chicken easy he and his 3D printer have enough construction contracts for the next two years