IT'LL NEVER FLY, ORVILLE:

3D printing is taking home construction to new heights. In Houston, a giant printer is building what designers say is the first 3D-printed two-story house in the U.S.

The machine has been pouring a concrete mix from a nozzle, one layer at a time, in hot weather and cold, alongside a sparse on-site workforce, to create a 4,000-square-foot home.

While construction 3D printing has been around for over a decade, the technology has only started to break ground in the U.S. homebuilding market over the last couple of years, said Leslie Lok, the architectural designer for the project. Several 3D-printed homes have already been built or are currently in the works across a handful of states.

Lok, who co-founded the design firm Hannah, says her team aims to eventually scale up their designs to be able to efficiently 3D print multifamily homes.

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