Working Magnetic Motor on you tube??

[lumen]

@vipond50

The waveform is consistent with the peaks and valleys very close to the same as long as the stator magnet is the same height as the rotor magnets. They vary a bit in size if not  operating at the same height.

The notch or glitch you may have been seeing is when I apply the short to the tachometer to try to stop the stator. I only shows every other wave because I only put one reflector on the stator for the pickup. I did try two but went back to one for the video so it would show two waves for every rotation of the stator.

I need to get a better brake since the waveform shows almost no change in speed after the braking pulse.(does very little)
It seems if it was stopped more then the next move is to accelerate of the rotor magnet which would put more energy back into the rotor. There is much room for breaking because if I touch the stator after everything is stable the system fluctuates. This fluctuation is much larger even than the entire shown waveform. This is room for breaking!

After each break pulse (if it worked) means the amount removed would be applied back into the rotor. So the system would actually run by extracting energy and without doing so the energy would equalize and the system slow to a stop.

Weird, did I say that?

[hydrocontrol]

lumen,
I did notice in playing with my setup that I was getting a lot of stator bearing slow down from the stator magnet. I killed (or at least partially killed) that effect by adding a steel washer to the bottom of the stator magnet, then a thin plastic washer and then another steel washer, then a thicker plastic washer and then the bearing. The steel washers warp the magnetic field downward but do not appear to effect the field outward. Something you may want to experiment with.

[JAG]

expect a bit of a traffic increase...Steorn website went down again

[ken_nyus]

You might be on to something here Ken...

BTW, How's your rig coming? ani closer to machined parts??

Great work by Lumen, the most useful information yet on this motor.

No machined parts yet.

I have the N42 magnets, and tomorrow should be arriving some HDPE, Delrin, Aluminum rod ,and some bearings, these  1/16" thicker than Al's, and I have no idea what quality these bearings may be.

I'm still hoping one of the group buys may go through.

But in the mean time, I will probably end up at a friends house, who has a small wood lathe, and a drill press, and see what I can do there. I will probably use a plywood base.

So if Lumens theory is correct it seems important to make the stators adjustable in height, to possibly control the induced drag.

[amigo]

Someone mentioned on the pages earlier that a hi-speed recording camera would be ideal, to record the spinning and positions of the magnets, so it dawned on me that I've seen one recently that's fairly affordable (for what it does):

Casio EXILIM EX-F1 (300-1200fps in video mode): http://www.dpreview.com/news/0801/08010601casiof1.asp

Just fyi...not available until March'08 though.