July 26, 2025
Description
I had a rechargeable kit from a previous project and a wife complaining about the heat, so this minimalistic fan was born.
The shortness of the cable dictated the design greatly, but did lead to a unique shape at least!
The toroidal blade was definitely chosen for its printability. I did experiment with more traditional shapes but i found the printability resulting in not so sleek results. And this shape does also seem to be a bit quieter!
The air flow is strong enough to provide relief from the heat and “its really cute!” (you'll never guess which color missus chose).
This project uses the Rechargeable kit (linked in the BOM) and nothing more (aside from the printed parts duh), some disassembly is needed from the motor but nothing complicated or destructive!
I printed the blade using PETG Translucent and PLA. This because i have yet to get my hands on the new translucent PLA and didn't have any PETG in these nice colors. Luckily the H2D handles multilateral well!
I have included a single color one plate profile as well as a multi color profile which has a multi color blade and a multi color multi material blade. Dependent on your taste.
Also, obligatory disclaimer: this model does not have a cage around it. While the motor isn't powerful and can be easily stopped by hand, don't stick your/your child's/your pets fingers in it.
Assemble your parts
Start by removing the gear box from the motor. It is held together by two screws, the gear assembly wont crumble to pieces. I stored it in the zip lock bag for the tiny screws.
Attach the anchor pieces around the motors metallic gear.
I pressed it gently with some pliers to make it snug. The idea is for the metal gears teeth to dig into the PLA.
Next fit the adaptor piece
Slide the motor in to the shell
Insert the button cover (if the button feels too snug, slide it in and out for a few times).
Slide in the circuit
Fasten the circuit with one of the tiny screws that comes with the kit. Note: Do not over tighten the screw, stop when it reaces contact with the board!
Insert the battery
Attach the fan
Install the back cover, fan end first
You did it!
License:
Standard Digital File License