Human powered crane.
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Previously:
https://www.homemadetools.net/forum/...2516#post76503
https://www.homemadetools.net/forum/...400#post181527
https://www.homemadetools.net/forum/...634#post178253
https://www.homemadetools.net/forum/...080#post153482
https://www.homemadetools.net/forum/...930#post152866