Human-powered air compressor.
https://diqn32j8nouaz.cloudfront.net...1_fullsize.jpg
https://diqn32j8nouaz.cloudfront.net...2_fullsize.jpg
https://diqn32j8nouaz.cloudfront.net...3_fullsize.jpg
https://diqn32j8nouaz.cloudfront.net...4_fullsize.jpg
https://diqn32j8nouaz.cloudfront.net...5_fullsize.jpg
https://diqn32j8nouaz.cloudfront.net...6_fullsize.jpg
Previously:
https://www.homemadetools.net/forum/...895#post175548
https://www.homemadetools.net/forum/...654#post167065
https://www.homemadetools.net/forum/...226#post157892
https://www.homemadetools.net/forum/...787#post163702
https://www.homemadetools.net/forum/...905#post210290
