Parametric Archimedes screw pump
thingiverse
This is the core of an Archimedes screw pump. If you run the OpenSCAD file, you can adjust it in all sorts of ways. It has a keyed lip at each end so that you can connect several in series for serious lift. It also has a raised area in the middle to hold a bearing, such as https://www.thingiverse.com/thing:3311118 with an inner diameter of 64 mm. You should print the short version first to make sure that the overhangs work well. Inspiration and terminology from THE TURN OF THE SCREW: OPTIMAL DESIGN OF AN ARCHIMEDES SCREW by Chris Rorres of Drexel University http://cicada.cs.drexel.edu/~crorres/screw/screw.pdf
With this file you will be able to print Parametric Archimedes screw pump with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Parametric Archimedes screw pump.