Hi everyone,

I was on YouTube and found this Magnet Motor that truly works.

http://www.youtube.com/watch?v=TiPRXwrWELs

I don't remember seeing a topic on this design, so I started it in case anyone may be interested.

Sorry if it has already been posted before. Stefan can delete it if it's been posted before

Luc

Hey Luc

It seems it is only making the run that it does from the first pull of the magnets. Otherwise he could put it in the middle and it still would want to rotate to the far end as shown, if it worked. Once the first pull gets it going, it runs slower as it approaches the sticky spot. It is a rotary smot. 

Mags

 
Hi gotoluc,

It is both intriguing and frustrating to watch this clip, since the track is far too short to possibly make any conclusions whatsoever.

The reason Mags makes a somewhat premature conclusion in a sceptical direction is mainly based upon the old "faithful" sticky point which hitherto never have failed to put and end to any purely magnetic rotational continuity, although Mags suggestion that the rotor motion is dominated by deceleration does not match with close observation of the clip. As far as I can see, the deceleration of the rotor does not start until somewhere close to the middle of the track, where a notably deceleration is building proportional to the decrease of distance to the last magnet on the track.

Quote from: Magluvin on March 24, 2013, 04:03:42 PM
Hey Luc

It seems it is only making the run that it does from the first pull of the magnets. Otherwise he could put it in the middle and it still would want to rotate to the far end as show, if it worked. Once the first pull gets it going, it runs slower as it approaches the sticky spot. It is a rotary smot. 

Mags

Hi Mags,

How about letting him start the thing from the middle?

I have sent him a message asking him for a short clip where he documents such a start.

Regards,

Gwandau

Hey Gwandu

Exactly. Start it in the middle. I watched it a few times for specific things. I believe the guy wants to convey that the rotor on the track will be developing what seems to be a good bit of go, as if it were to continue, it would probably go faster than shown.

But if it did have that much go, then he would have had a harder time unwinding it by hand. I was hoping he would have stopped it in the middle and show 'what we are thinking' , but he doesnt. It unwinds nice and easy , just not out of the entrance or the exit of the track.    

So I stand by my premature conclusions here, as they are based on quite a bit of hands on experience.

Mags

Thanks for your replies,

what I found interesting in this design is the rotor can turn 180 degrees many times. That in itself is an achievement!   Also, one can conclude the rotor would continue to turn if the stator magnets were continued.
The question is, would it continue to turn if it was built in a circle?

I find the geometry of this design is very natural and thought it would be something to consider.

Luc