Martian soil could serve as a 3D-printing material, researchers have shown, meaning it could be used to manufacture items on the Red Planet. 

In a series of tests, Amit Bandyopadhyay, a professor at the Washington State University School of Mechanical and Materials Engineering, and his team used simulated crushed Martian regolith to demonstrate its capabilities as a 3D-printing material.

The results may be crucial for future crewed missions to Mars.

This reminded me of a 2 page comic I did a while back, which shows 3d printing buildings in passing

See the whole thing here: link