Our article Large-scale 3D printing of ultra-high performance concrete – a new processing route for architects and builders was ranked #4 most downloaded paper in the Materials & Design journal for the year 2016. The journal published 1,654 papers in 2016, which puts ours in the top 0.3% in terms of downloads. Congratulations to the DEMOCRITE project team co-authoring the paper, which is the scientific basis of an even more interesting project: XtreeE, the start-up company we created based on the technology introduced in this paper.