Working principles of several stepper motors (bipolar, unipolar, reluctance and can-stack)
Channel: HomoFaciens
Date: 2015-07-29

Thanks to  d85iDE for proofreading the video script!

Table Of Contents:
00:00 Introduction
00:24 Bipolar motor, 2 poles, clockwise
05:59 Bipolar motor, 2 poles, counterclockwise
08:02 Bipolar motor, 6 poles, counterclockwise
09:21 Bipolar motor, 6 poles, clockwise
09:40 Bipolar motor, 6 poles, half stepping
13:24 Bipolar motor, 6 poles, 2 phase on excitation
14:28 Coil with center tap
16:00 Unipolar motor with center taps
18:13 Unipolar motor, half stepping
19:02 Variable reluctance motor, 2 poles
22:17 Variable reluctance motor, 4 poles
24:11 Variable reluctance motor, 4 poles, half stepping
25:43 Variable reluctance motor, 16 gear teeth
28:57 Variable reluctance motor, 16 gear teeth, half stepping
30:23 Hybrid stepper motor
32:21 Hybrid stepper motor, half stepping
33:14 Can-stack stepper motor

The project page:
http://www.homofaciens.de/technics-electric-motors-stepper-motor_en_navion.htm