A 3D printed, hand powered fan. Designed in Tinkercad and printed in ABS on a Flashforge Creator Pro 3D Printer.
A few years ago I saw a Japanese Youtuber who creates wooden fans which are powered using a finger tapping motion. I really wanted to duplicate the design but there was a language barrier when asking questions and I’m not very good at wood work.
Fast forward a few years and I now have a 3D printer that allows me to design something on the computer, print it out and test it. Make tweaks and changes to certain parts, reprint those parts and test again. After a few minor revisions I got something that I was really happy with.
The angle of the blades are easily adjusted which means you can have fun adjusting the angles to see which moves the largest amount of air, the direction of the air and so on.
The blades are relatively small so it doesn’t create a huge cooling effect but you can feel it.
In a future version I want to use gearing to hugely increase the speed of the fan. I’d also like to come up with a way to allow the fan to free-spin after the user has stopped tapping.
Link to Japanese hand powered fan: http://youtu.be/Gjdvf7IdVqE
Download and print this fan yourself: http://www.thingiverse.com/thing:701589