Nail coiling machine.
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Previously:
https://www.homemadetools.net/forum/...825#post119200
https://www.homemadetools.net/forum/...570#post182188
https://www.homemadetools.net/forum/...053#post176183
https://www.homemadetools.net/forum/...548#post136090
https://www.homemadetools.net/forum/...484#post147063