Zundel Stéphane
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Zundel Stéphane
https://user-images.githubusercontent.com/3099695/115149287-ab3c6300-a063-11eb-96a9-f3ca5292c459.mp4 This design is used in my quad-copter radio. There is also a screw to apply tension on spring. I think there is some calculation behind the spacing of the...