Motorized Propeller Hat Module
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A compact, 3D-printable motorized propeller module that fits any baseball cap. Powered by an N20 micro motor and a Lipo
- Rating
- 5 / 5
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Updated at source:
Model information
- Source
- Printables
- Category
- Other Fashion Accessories
- License
- Creative Commons — Attribution — Noncommercial



Hardware You'll Need:
Motor: N20 Micro DC Gear Motor (I used the 3V 100 RPM version)
Battery: 1S LiPo Battery, model 502030 (fits perfectly inside the case)
Switch: SS12D00 Slide Switch
You can use with the sphere to cover the n20 motor or without it. I think it looks really cool with the motor showing up.

I'm currently waiting for the parts I ordered to arrive so I can put everything together and record a video of it working—I'll update the project here soon. I would love to hear about your assembly experience and any suggestions you have for improvements!
⚠ Update (July 18)
New Base System: I have updated the base to a much simpler design! Now, after attaching both parts to the cap button, you lock everything in place using the motor piece. The previous spring-based system wasn't working as well as expected.
Thicker Propeller: I also increased the thickness of the propeller to make it much easier to print.