So I was quite simply thinking of the dreaded sticky point known in pm motors until I started to think along the lines of making the rotor magnet "disappear" for a slight moment to avoid the sticky point and then make it "reappear". And what a better than to use magnetic shielding.

Quite simply when you approach the sticky point some shielding mechanism shields the magnet so it enters effortless and a very short moment later unshields it to let it speed up. The idea seemed so simple that I wanted some opinions as to wether I overlooked something  .

Yes, that could work. By nature, magnetic shielding using thick steel, mu metal etc. is only partially effective. It doesn't actually block a magnetic field so much as it absorbs it. the shield is attracted to the magnet instead of the ferric material on the other side from the shield. Because of this, you couldn't for instance shield two magnets from each other but you could shield a magnet from a block of steel. You also need to work out how to remove the shield, since it will then become stuck to the original source magnet. Steorn has a patent on a low-energy actuator construct whereby a shield can be moved in and out from a magnet with little energy loss because it is being moved from one magnetic field into another magnetic field of equal strength. So long as your motor design would allow for a secondary magnet to be used like a holder for the shield when its not being used to block the primary field and so long as your design uses magnet-to-metal rather than magnet-to-magnet interactions, then you might be able to get something to work.

You should develop the idea further a post it out here for others to critique

I played around with something similar to that a while back in my first failed pm motor design. Note that he is using shields on both magnets. You will still need to figure out some way to move both of the shields in\out with minimum force. If these are mounted on a rotor and stator then it will take extra mechanical effort to move them both at the appropriate times - IE two separate mechanical systems. Kewl idea though. I'd like to see what kind of overall design you're working towards.

@AB HAMMER
      I believe that any magnet wheel that can run for one and a half days is capable of being of being improved to run for a much longer periods. Would you care to share the design? \\regards Neptune

I came across this concept that I searched for on this forum but found nothing about. It's called the Dual Piston Device...

http://www.fdp.nu/dualpistondevice/default.asp

Now this looks interesting indeed and even another way to improve it is to add stationary magnets on the outside with the same shielding idea so that the magnets gets pushed back instead of relying on very far pull. If this works using that tin/rubber shielding it might be a winner.

I have been digging in the magnet motor section. It's amazing what you can find. Lots of inspirefull stuff. Anyways I found the following thread...

http://www.overunity.com/index.php/topic,302.0.html
http://kalininaa.narod.ru

You'll have to go down a bit to see some action. But I don't know what the conclusion of this built was but I'm curious whether it could be improved with the rubber/tin shielding. Technically it should eliminate the shield affecting the motion.

Well broli

 Yes this could very easily be improved, for they have over complicated them. But it is also a project that myself and another person are setting up the groundworks to do, when I am finished with my gravity wheels. So I can't tell you what it is but I will say it is miles ahead of what I have seen you post so far.

If  you are talking about   improving this    motor I agree  .........it may  have lots of potential .

http://kalininaa.narod.ru




WHat  comes to my mind    is a  video  that  I saw  quite a while back .... I don't  remember  what it was called or  where to find it .... and I don't want to  spend all day looking .    Maybe  someone else  will  remember  where it is .

In  the  video  sommeone   was   expermenting  with  magnets and a bar or  iron . 
He  demenstrated that the   when he placed  a magnet  at  one end   of the  iron  bar  the whole  piece of  iron  acted like a magnet .        Then  placing  another  magnet  near the  middle   it canceled  out the  magnetic  effects on the   end  of the bar . 


It  seems to me that this  affect  might  be usable  to make   this motor  run WITHOUT  moving  the  shielding .
It  would take  some expermenting  and  the balance  would  be delicate .   .............but   I think  that if a bar  of  iron was used  as shielding  ........and a  LARGE  magnet  placed on it   a  distance  away from the    active magnets in the motor .
The  large   magnet could    magnitize   the  iron bar and actually attract   the  piston  magnet .   
Once the  piston  magnet got  close enough to   dominate the magnetic field   the polarity of the iron  bar  would switch ......and  that end of the iron  bar  would in effect   become  just   a core   between   2  like  magnetic  poles . 

The  key would  be  to find the  balance  between   all the magnetic  forces .........  saturation   and flipping  would have to  happen  very  close to top dead  center .

As I  see it   it would  take a  very  powerful magnet   on the bar to   hold the  magnetic field  long  enough .
Also  the bar would have to  be  fairly thick .

Another  couple of  changes to  make it more efficient
The  top  magnet   should be replaced with another  piston  and  magnet  setup .   

While   it should  work with only  one    set  of  pistons ........the  large magnet on the bar is  idle  much of the time .....  another  set of pistons  operating    90 degreees  behind   the original   set of pistons   would     make  better use  of  the large magnet ........ setting    4  sets   up in a ring might  be  better yet .

 

A coil  should  be placed on the  iron  bar   in between  the     pistons  and the   large magnet .
It  should  probably be shielded   from the  magnet .
The  inductance of this coil ......I believe it is called  lense  effect should  slow  down the  flipping  of  the  magnetic  field in the iron bar ,,,,,,,,,,,giving   the magnets time to move ............

Any  power tapped  by the  coil is FREE ENERGY


gary

@resonanceman

 I see you are doing your home work. I remember that video and it was only a steel bar, but the effect of dropping the magnet was a cool effect. I have already redesigned the one seen on the sight you posted,  to see if it will have any better effects and it does. But it still don't come close to the design we have planned out. IMHO

AB Hammer

Yes   I   have been  doing alot of homework   

 

I remember  when I  saw the video  I thought  it was a cool  trick ..........but  wondered  what it could  be good for .  ....  Now I understand.     

What  I like best about  this   idea  is that  it working  revolves  around lense  law .......  with most  OU  devices   people are trying to get  around  lense  law ,....... this  idea isn't practical  without it . 

If  we  tried this idea  without the coils    the  magnetic  fields  would  switch  way to fast  and   the pistons  would not  have a chance to  move .   


gary