https://apnews.com/1baf2dd9c40752ea20d8b4dbb9925323 > EINDHOVEN, Netherlands (AP) — Elize Lutz and Harrie Dekkers' new home is a 94-square meter (1,011-square foot) two-bedroom bungalow that resembles a boulder with windows. > The curving lines of its gray concrete walls look and feel natural. But they are actually at the cutting edge of housing construction technology in the Netherlands and around the world: They were 3D printed at a nearby factory.