The file 'Toroidal Blade Desktop USB Fan 3D Printer Model' is (stl) file type, size is 3.2MB.
So here is that massively over-engineered, easy to build, super quiet little desktop fan you have been waiting for.
I am not in drone design, but still wanted to play around with that MIT toroidal propeller design everyone is talking about. So here is my take on the use of toroidal blades (for everyday life - at least once it gets a little warmer outside).
The fan can be powered directly from USB or using a separate (preferably 9V) power supply (which is what I ended up doing as it gives you a little more power).
All you need is one of these
FILAMENT
PRINTING
Printing should be super easy. No supports needed. I use 30% infill and 0.25 mm layers (except for the propeller, which I printed at 0.1 mm to get a smoother surface).
ASSEMBLING should be pretty straightforward. Use two M3 (around 6-8mm) screws to attach the foot to the main body. Use a drop of glue to fix the front to the main body and the small cover to the connection box (once power is connected).
Toroidal_Fan_Blade.stl | 3.7MB | |
Toroidal_Fan_ConnectorLid.stl | 1.4KB | |
Toroidal_Fan_Foot.stl | 303.8KB | |
Toroidal_Fan_Front.stl | 2.3MB | |
Toroidal_Fan_MainBody.stl | 851.7KB |