This is a ducted fan that I've designed in Fusion 360. It works with an electric motor of 23 mm in diameter and a 3mm shaft. As always I've included in the file you will download a lot of CAD format so you can modify my design to fit your needs.
There is also an optimized propeller which requires less power in order to work properly.
If you have a DC-Motor with different dimensions:
Write me in the comment these value:
I will upload as quickly as possible the model with the dimension that you asked!
Original Prusa i3 MK2
IMPORTANT: Use support material ONLY when printing the fan not the duct!
I'm a student in aerospace engineering, I like to experiment with new and innovative designs, some are just usefull things that I need and others are things in which I made a lot of studies in order to make them work properly