HumanCar human-powered car - GIF

HumanCar human-powered car. Converts rowing motion of the driver and passengers into rotational motion to charge the vehicle's battery.

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Previously:

https://www.homemadetools.net/forum/...879#post160057
https://www.homemadetools.net/forum/...834#post108635
https://www.homemadetools.net/forum/...504#post170062
https://www.homemadetools.net/forum/...1273#post74087
https://www.homemadetools.net/forum/...400#post181527

4 rowing stations. Kind of reminds me of the bumper stickers I used to see on about half the trucks in the truck stops back in the eighties; "Ass, gas, or grass. Nobody rides for free."