This is a 3d printed house, it is the newest way of making a house for $4,000 and in about 24 hours. This massive 3d printer named the Vulcan II and uses concrete to print houses for people who cant really afford a full on house.

This is a picture of one of the houses that the Vulcan II 3d printed

This relates to engineering because it uses 3d printing but on a more bigger scale.The 3d printer uses mechanical parts like pumps and gears.

Sources:

https://www.businessinsider.com/3d-homes-that-take-24-hours-and-less-than-4000-to-print-2018-9

https://www.iconbuild.com/

https://www.dwell.com/article/icon-3d-printed-homes-for-4000-dollars-23d715bf