Turbo cooling fan from spare quadcopter parts

thingiverse

Summer Turbo Cooling Fan It features a 5" propeller, which can be either 5030, 5035, two or three blades, depending on what suits your motor and voltage best. In my case, the motor is a cheap DYS-BE1806 suitable for such propellers and 2S-3S voltage. The mounting holes are compatible with any similar motor and can accommodate motors used in 250 quadcopter frames. A 7mm hole in the handle is designed to fit a Chinese servo tester potentiometer knob, allowing you to stack all of these components together: an XT60 connector, an ESC, and a tester on top of each other. The handle measures 25mm x 35mm and should fit standard LiPo 3S small quadcopter batteries. I use 1300 and 2200 mAh 3S turnigy batteries, but the difference lies in length - the smaller battery fits nicely while the bigger one sticks out a bit. The handle is 14.5mm long and had to be trimmed down to fit on a 220x220 printer bed. It barely fits, so centering your bed precisely is crucial for successful printing. Alternatively, you can scale it down, but keep in mind that the inner diameter has 130mm space to accommodate the propeller, with the gemfan 5030 propeller occupying 127mm of this space. To print this design successfully, set plate adhesion to none in your slicer software, ensuring that you have access to the entire bed space. There is a single 35mm bridge in the "bottom" part; if your printer cannot handle it, add supports as needed. The whole thing consists of three parts: the top handle in two versions (with and without a switch), requiring two thin screws for assembly. Print with 100% infill and 1.5mm thick walls to prevent empty spaces and ensure rigidity after assembly. Tinkercad: https://www.tinkercad.com/things/91HYls7lNBf-turbo-fan