4045 3-Blade Propeller
thingiverse
That's a propeller designed to be 3d printed. It requires supports and a bit of work, however, to make it fully work. Print it upside down, it will be easier and you'll use less supports. This is the CW version, just mirror it in your slicer to have the CCW one.
Download Model from thingiverse
With this file you will be able to print 4045 3-Blade Propeller 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 4045 3-Blade Propeller.