Gun looking Dynamo
thingiverse
This is a Hand-Built Power Source, Constructed with Additive Manufacturing. The Outer Casing is Molded Like a Handgun, with the Trigger Serving as a Gear Ratchet to Energize the Cogwheels and Motor. Consisting of 5 Unique Components (the Large Double-Geared Wheel is Utilized Three Times in the Design) Besides the Printed Parts, we Used a Series of Electronic Components to Create Both a Joule Thief and a Rectifier. For this Project, You Will Need the Following: A Transistor of Type NPN (2N3904 or Similar) A 1K Ohm Resistor A Toroid Coil Salvaged from an CFL Light Bulb 26 Gauge Wire 4 Standard Diodes A Breadboard
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