This DIY hand-crank charger basically uses a “LEGO motor to generate current, which is then passed through a voltage regulator, and lastly, to the usb port.” Instruction page. Video of it in action after the jump.

It would make a great stocking stuffer for anyone who uses devices that charge via usb. If you are getting it for a person who likes to build their own things, just collect all the parts put them in a ziplock, and put that in the stocking

[via NewLaunches]

This DIY hand-crank charger basically uses a “LEGO motor to generate current, which is then passed through a voltage regulator, and lastly, to the usb port.” Instruction page. Video of it in action after the jump.

It would make a great stocking stuffer for anyone who uses devices that charge via usb. If you are getting it for a person who likes to build their own things, just collect all the parts put them in a ziplock, and put that in the stocking

[via NewLaunches]