Since some people commented that the previous design: https://www.thingiverse.com/thing:4904157
doesn't spin well in low wind speed, I designed a new version, and tested in several wind speed (from 5.5m/s to 1.8m/s, you can see the test in the video) to make sure it can perform well in most situations.

The design is a savonius type wind turbine, and I designed some little latch to make it customizable that you can customize the number of layer of blade (part name: Customizable Blade.stl). I've tested 1~3 layers and they all work well, enjoy!

The bearing I used is the one in a fidget spinner. (Inside Diameter: 8mm, Outside Diameter 22mm, Thickness: 7mm. [608 bearing])

How to make it:
https://youtu.be/0k_ZjpVXeFA

About us:
Website: https://coffreedom.com/
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