Electric generator

thingiverse

This is a 3d printable, working electric generator / dynamo with a built-in gearbox. This generator is capable of producing ~12 volts and ~175 micro amps. (For comparison, this is about as productive as two AA batteries) Contents: hull part 1 hull part 2 hull part 3 hull part 4 hull part 5 gearbox hull 1 gearbox hull 2 gearbox hull 3 2 big gears 2 medium gears a crank gear a crank rotor (2 parts) rotor shaft (3 parts) small shafts (5 parts) bearing replacements (2) extra gear for higher gear ratio What is needed: 3 coils (Max size ~ 46x32x42 mm (The holes for the coils are oddly shaped, so a slightly larger coil could fit if it would be shaped right)) 12 neodymium magnets (Max size: 10x10x5 mm) 2 bearings (Outer diameter 21 mm, hole diameter 8 mm) Note: These can be replaced with the provided bearing replacements. Some wire (a 55 cm long wire should be enough)