“It makes drawings in the air, following [real] drawings [which] it scans with photo-cells… Plastic comes out of the end of the drawing arm and hardens as it comes.” So wrote Murray Leinster, an ...

Layer by layer, a 3D concrete printing machine has been building new homes in Dundalk from the ground up over the last two weeks. The three social housing units, located at Grange Close in Dundalk, ...