homelessness problem. step in 3d printing. you can make pretty much anything with a 3d printer these days, from guns to iphone cases — so 3d printing houses help solve california's housing crisis? well, one company here in oakland thinks that it can, and it has already started to 3d print components of houses. yeah, so i think 3d printing has a huge opportunity to help solve the housing crisis. obviously i am a little bit biased. mighty buildings has won a contract to build what they say is the world's first community of zero carbon 3d houses in rancho mirage, in southern california. we are going to be deploying a combination of three—bedroom two—bath single family homes. these houses are not small, so how can they build such big structures out of plastic? what we have done is we've leveraged a proprietary 3d printing technology we have created with the material called lightstone, which is a thermostatic composite, so it's kind of a synthetic stone, that cures using light,