I didn't know it was out that early.
We have the same though. Digging on 3D printing technology, I found out that they existed as early as 1980s, but they are not yet fully developed to what we have to date.
I am very interested in how the housing market will look because 3D printed houses are way cheaper to make.
I think it will greatly effect the housing market. We may see cheaper housing units, but not too low.