Crank Gear box for electrtic motor
thingiverse
This is a gear box that uses a salvaged motor to generate electricity by cranking handle. can easily power a couple LEDS for "emergency" flashlight. With some Super caps could easily be a cheap alternative to some more expensive commercial brands. Could potentially charge a cell phone but would have to check voltage, amperage and install some sort of volt/current limiting electronics. uses : 1X electric motor # CZ021-60025 HN624710 2x 5x10x4mm bearings for large and medium gear to ride on 2X M5x20-25mm socket cap bolts for large gear and medium gear retainment 3X M3x 10-15mm Socket cap bolts for large gear hub 1X M4x 20mm Socket cap bolt for handle
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