Voltage from 4 wire bipolar stepper motor!
I've stripped a 1.8 deg stepper motor out of an old fax to make a bike generator but I can't get any juice from it. I'm spinning it using a multi tool so I should get something, right?! I did do some research and found out that 4-wire bipolar stepper motors are controlled differently from 5+ wire ones. I guessing then that generating power is different also. I'm reading 2.1 - 2.3 ohms off each coil. Tried wiring the coils in series but still nothing. I need a long serving instructablator to help me!!
The label reads:
1.8deg/STEP 2.1 ohms
33.5 V D.C. 0.7 A
SHINANO KENSHI CO LTD. CHINA