Pedal-powered saw

ThreePulleys made this effective, if somewhat alarming exercycle cross-cut saw.

It would certianly cut faster if I sharpened the blade properly, at the moment it is no faster than a hand-saw but much less tiring. Adding weight to the blade makes it cut faster but too much weight and it starts to load up the exercycle.

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from Boing Boing https://ift.tt/3nOtrWB
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