This was a toy from Chinatown that was investigated for its potential as a generator.
The spinning part was modified to include another homemade mount for motor shafts of various sizes.
The trigger with adjustable nut.
This is how the tri-screw accomodates a motor. Note the very low internal resistance of this motor.
The complete setup. Unfortunately, it doesn't seem to be very powerful.
Measurements have peak power of 54 mW! This is very small. Possibly useless for this project?