Flickr user gdafm saw my recent rebar bike post and sent us a link to these photos he took in Ampareas, Peru, of a pedal powered grain mill made in large part of welded rebar, including rebar pedals and a rebar bike seat. [Thanks, gdaf!]
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I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I am a long-time contributor to MAKE magazine and makezine.com. My work has also appeared in ReadyMade, c't – Magazin für Computertechnik, and The Wall Street Journal.
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Neat gadget but that is definitely a bike seat for Spartans. I’m just not made of stern enough stuff because my first thought was “That’s gonna leave a mark.”
My favorite machine of this sort is one I saw in Korea in the 60s. You feed rice straw into the hopper while running it and it produces a continuous length of the rice straw rope they use to tie large bundles.