Whenever someone appears to be struggling to explain something, it's often either due to lack of preparation of the lesson, or because they don't fully understand what they are talking about. I suspect in this case it has more to do with the first of these, since he tends to babble, rather than speaking coherently to a preprepared script, and uses visuals which don't match. 1.(3:48) In the explanation of wave velocity for an alternating current the picture illustrates the magnetic field oscillating up and down, yet when referring to the graph he talks about the electric current oscillating up and down. It would be better to have these illustrations match each other, or at least explain the difference by way of rotating the right hand by 90⁰ when illustrating the right hand law. 2. (6:10) A single wavelength is illustrated on the graph, yet he fails to recognize this when attempting to illustrate the wavelength by placing his hands on the whiteboard. 3. (7:35) Once again the visuals don't match, one illustrating the 3 phases in the order blue, yellow, red, in respect to velocity, and the sinusoidal diagram illustrating blue, red, yellow, with respect to velocity. 4. (10:52) The stator of an axial flux motor is normally wound such that the flux is parallel to the axle, not rotating around it, and this is because it presents the poles of the magnetic field generated by the windings to the permanent magnets in the rotor. Field strength is strongest at the poles, thus this is the most efficient design. The method used here will still work, but it presents the weakest part of the magnetic field to the permanent magnets and therefore is a less efficient method (although it is arguably easier to wind).
Is that stator efficient? You've got loops around that ring making the phases, doesn't that create the strongest direction of the magnetic field along the circumference, the direction you would want the force to be? Then the winding loops back on top of itself, wouldn't this cancel out the magnetic fields? Am I just misunderstanding something?
I am very interested in that motor and downloaded the files but I would like to know if that kit is available. Unfortunately, your seems to be locked when I tried to email you. Keep the good work.
A kit is not available at this moment, but we will do so when we gather enough interest. I'm sorry to hear about the troubles you've encountered with the website. It will be fixed shortly.
