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 ...

It’s important to note that sulfur-free clay must be used, otherwise the silicone might not cure. One side of the silicon mold is cast first, and after curing it is placed back in the mold box ...

Digital and Environmental Foundry approaches range from 3d printing to ancient clay molding techniques ... plus a full range of kilns, a new CNC mold ramming press, and appropriate finishing tools.