Hand Powered Personal Fan
thingiverse
Keep calm and stay cool while you're at it! You might actually produce more heat spinning this thing than you can keep cool with your fan, haha! I used a fan designed by danowar, which was pretty flat on the bottom for easier printing. You can find it here: https://www.thingiverse.com/thing:2352036 Note: I scaled down the one shown in the pictures to 50% and it works great. Update: December 30, 2017 - I had a collision in gear C. Please use the new gear C that I've uploaded. Sorry!
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