(click photo to enlarge)
Observing the 3D printer, from left, Mr. Adrien Krajnik, Joey Karim, Henry Moody, Benjamin Brogan and Benny Kaschube.
The 3D CAD file of an Archimedes screw.
A 3D-printed Archimedes screw using a polylactic acid (PLA) filament, a type of polyester made from fermented plant starch.