Back in the deepest archives at TD Towers is a 2011 post on 3D printing for buildings and field fortifications using a technique called contour crafting. One of the disadvantages of these early systems was the need to build parallel rails for the printing head to move along. This new system from APIS COR in Rusia does away with parallel rails and instead, uses a robotic arm.

The main attraction of these systems is the dramatic reduction in waste materials, ease of transport and low power consumption, less than 8kW.

A single device can cover an area of up to 192 m2

Read more at APIS COR