Working Magnetic Motor on you tube??

[Jona]

Hi lakes

I agree that Stepper motors are a good option, though to show OU, you would like to get rid of all external power sources.

[hydrocontrol]

Hi All,
  In my 'primitive' and 'not exact' replication I have noticed a few things.

1. The effect appears to be real. There is a very apparent syncing effect that 'as it happens' appears to keep the rotor at a steady speed for at least a couple of seconds. I still have to 'learn' how to do video but mine would still pale in comparison to this one already posted. This effect can best be seen in
CLaNZeR  video CLaNZeRSLatch4.wmv at http://www.overunity.org.uk/

2. Is going to be extremely hard with this setup to find the 'right' combination of magnet strength, location, friction, bearings, mass of rotor, mass of stator, etc. I have only two lengths of rotor magnets to play with .5 and .75 inches. I think Al's are somewhere in between. I would hazard to guess that even Al would have a hard time making a working second one.

3. Is not going to be 'slap it together' and it will work system.   I am not saying that what Al did was a fluke and not reproducible. I am saying that it is going to be a 'real bear' to get one working so it may take weeks-months of playing to get another one running. Of course someone may have one running tomorrow  Doubt that it will be me 

[lumen]

@Charlie_v

I should have shown the stator tachometer. It is not a simple coil detecting the magnetic field, it is rotary device like a small generator that generates a voltage from rotational speed.
The specs are 7v per 1000 RPM.
The wave you see is actually the stator speeding up and slowing down as it pases each amgnet on the rotor.

[xumed]

@Charlie_v

I should have shown the stator tachometer. It is not a simple coil detecting the magnetic field, it is rotary device like a small generator that generates a voltage from rotational speed.
The specs are 7v per 1000 RPM.
The wave you see is actually the stator speeding up and slowing down as it pases each amgnet on the rotor.

This slowing and speeding up is because of the slow/fast parts of the cycle on the stators as clearly shown by ZeroFossilFuel on youtube http://www.youtube.com/watch?v=EHy_OeS8qVE

Most people dislike his replica but He is very knowledgable and his replica is only intended to explain some of the effects seen.

Good job Lumen on your observations and methodology

[Charlie_V]

Oh ok, can you give me the model number and manufacturer of the tach, I'd like to look those up, they sound pretty neat. 

Thanks,
Charlie