That’s not the only use of the technique though, and perhaps one of the simplest is to use a 3D-printed mould for casting concrete. It’s what [ArtByAdrock] is doing in their latest video ...
Dubbed Space Age Concrete, it is being made into precast products. Strengthened by a glass-reinforced rebar which is greatly lighter than its steel counterpart (not to mention reportedly five ...
We often forget that concrete is easy to use and creates things of good substance. Of course, instead of casting it, you can print it directly with the right gear.