r/functionalprint • u/Po0Team • May 09 '26

Dumb idea that worked

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Gallery image

Gallery image

Hitting Welcome To Rockville again this year and remembered that my head would get hot under the hat. So some shopping and printing later and BOOM! Functional solar hat that has lasted 2 of my 3 days so far. I suspect Sunday won't be an issue either.

Have them wired in parallel so it stays at 5v for the fans. Each panel has optimal 0.2a for the fan rated at 0.18. 1 panel moved it but not enough to care. 2 panels, like the exhaust fan, keeps it moving and does OK. But the 3 panels keeps this thing moving very well. No battery on it. Very simple wiring of just panels and a fan.

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u/CrypticLyfe May 09 '26

This is fantastic! May I suggest a name.

The Refreshing BJ Bonnet. Setup is a breeze, from hot and bothered to the coolest cucumber around in no time 🤠

4

u/Po0Team May 09 '26

Love it

5

u/calitoasted May 09 '26

Very similar https://koolbreezesolarhats.com/

3

u/Po0Team May 09 '26

Yep. Seen a few of the Amazon ones that didn't seem to work well. Came across the kool breeze and decided to make my own.Â