screw
thingiverse
This is an ingenious design of an Archimedes screw that can be printed directly, eliminating the need for any support material. By using aluminum tubing as the central axis, you'll have a sturdy and reliable component that's ready to get to work.
Download Model from thingiverse
With this file you will be able to print screw 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 screw.