Keep yourself cool this summer with this 3D printed desk fan! If you have a BBC Micro:bit, you can place it into the slot on the base, and use one of the codes below to use it as a thermometer. You can connect it to power when it gets too warm to switch it on.
The blade connector and stopper have holes sized 2mm diameter. If your DC motor pin is a different size, adjust this accordingly. Download the STL files from this page and get printing!
I have used crocodile clips, but for a permenant fan soldering the wiring to the motor might be better. You can also connect the Micro:bit and the fan to the same battery pack, I didn't do this because I only had 2 crocodile clips.
You will need:
1 x 3D printer + Filament
1 x BBC Micro:bit
1 x JST connector to battery pack
1 x AAA battery holder
4 x AAA batteries
4 x wires
1 x DC motor
I am looking to try and make this a Micro:bit controlled fan. If you have any ideas as to how this would work let me know!