Efficiency in Structures
Looking into bone structures also initiated a research in creating porous materials with high structural strength, and thus saving a significant percentage of the used material, while keeping the same efficiency and load-bearing capacity of the structure. A brilliant example of such a project is the Proto House by Softkill Design studio (below) [http://www.softkilldesign.com/project/].
Apart from saving resources, 3D printing can also enable the creation of highly-efficient organic forms, as mentioned under the Nature as an Architect tab.
Another difficulty, which usually comes up in construction projects, is joints and connections design. These can be easily modified and personalized through digital manufacturing, instead of having to choose or design a universal joint mold for a given project, because of financial and efficiency considerations.