electric hand crank generator
thingiverse
This is just an example. When you create your alternator (a new thing), pay attention to the ratio of pinion gears. As a generator I recommend using a car alternator. Spare parts for this model: Bearings (internal, external, height): 12,32,10 x2 8,16,4 x2 bolts, nuts Engine size 35x56 the amperage is 0.1A using 4 diodes, condensator, stabilizator 5v, usb connector links to used things: pulleys:http://www.thingiverse.com/thing:16627 belt:http://www.thingiverse.com/thing:2016747 box:http://www.thingiverse.com/thing:155001 Overview and Background
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