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[Omnibus]

Bill, this is very promising. Aside from the grinding and @zero's remark, it appears that the distance between the consecutive "stations" isn't the same. See in your rendition, the distances horizontally between the first, second, third and fourth heads of screws starting from the top and compare it with that distance between the fourth (bottom) and the fifth (next top). Not the same, isn't it? This changes the pattern of interaction which must be exactly the same at each "station" in order for the device to go on moving.

[zero]

a closer pic.

 Notice the various distances.  Very close tolerances.

 The Red and Green Diag. line show how close the spacing is
from Tip to head.

 The Red horizontal lines show that the Heads are on the same
lines.  (overlapping the line)   

 The blue lines show that the endpoint are very close to the heads that
are Below that point.

 These tolerances may play a big part in how the magnetic attraction
is flowing.

[zero]

Another issue is all the odd angles seen here.   Making it perfect might mess up
the flows.   Hard to say really.

[Omnibus]

That's strange, indeed. Could it be that this is such a rugged design that works despite all these imperfections?

[zero]

Roughly about 1 head apart horizontal diff.

[zero]

Actually, Its quite Brilliant

  The shape of the Heads go from very wide, to narrow quickly.   And since the
distance is the same as from one stator magnet to the other... 

 One the first stator (bottom) grabs a screw,  the 2nd stator is already starting to
pull  (and maybe even a less powerful pull from the 3rd).    Then, as the 2nd is
pulling - the bottom screw thins out, reducing its grab.   Thus the 2nd stators
able to pull the 2nd screw into place.   Then it continues up the chain.

 The only sticky spot is very small - to just get it started from the 1st
point to the 2nd.   Once its got enough momentum, it seems there is
no problem keeping the cycle going.   

 Well, that is, if the system were designed a little more accurately.
   

[Omnibus]

Roughly about 1 head apart horizontal diff.

Correct. Tha pattern has to be repeated throughout, each "station" outstanding the same distance from the previous. This is what I think Bill has to improve in his setup.

[sterlinga]

I've posted a feuture page about this here:
http://peswiki.com/index.php/OS:Screw-Magnet_Motor

Feel free to post notice of your repolications there as you build them, whatever the results.

Feel free to help beef up the instructions, materials list, etc.

Overunity.com is a great place for chronological dialogue.  PESWiki is a good place for an organized presentation of the material.  It is a publicly editable site.

Sterling

[Omnibus]

It appears that the exactness of this particular distance is the crucial factor despite all the other imperfections.

[billmehess]

What I wanted to do was to actually build the device so that I could first hand study the actual dynamics. When you have a physical unit in front of you then you can feel the "tug' of the magnets over the screws. It is so much better than trying to guess or figure what should or is happening from diagrams and pictures.
With the device I have built I can turn the pvc about 25%. Again I will examine closely that range of screws and see how it compares with the rest of the configuration and replicate that one set of screws at a time on the surface of the pvc.
Maybe I'm wrong here but I don't believe that all this grinding is necessary. I think if this device can work ( and that's still up in the air)
then I need to replicate what is working on my device (that 25%) and replicate it.
I am going to be in Seattle, Wa. for the weekend so I won't be able to do anything with this until Monday.

[zero]

Well, all the measurements play a role here.

 For example,  if your screws were too long, it would cause too much a delay in
the attractions to make enough pull force to keep it spinning fast enough from
one screw to the next.

 If the screws are too far apart vertically,  it may not provide that magic
magnetic feild battle between each stator properly.

 If the distance from the screws point is too far from the next heads, then
again, it may cause issues with continuity. 

 The fields battles are based on precise distance and timings.

-- edit ---

 and if the magnets are too far away from the screws, the pull fields will
be too weak to properly interact.   

 The grinding is very important. 

 The only way around it would be to use much more powerful stators.  BUT, the
problem with that is then the fields would probably overpower each other,
and have too much pull.  Meaning, they would be pulling upon too many
surrounding screws at one time - thus causing drag. 

 The magnets have to be just strong enough to grab the one screw,
and pass it on... which means it needs to be very close to the screw.

[billmehess]

Could not agree more. That's why we have to try different configurations to see what and what does not work. Again I seem to have something that works for 25% of the surface of the pvc. Why does it work? That is what I will attempt to find out. Are the screws to long?
I don't know , The spacing of the screws in my opinion is the most critical factor. Again I will start from this 25% and add layers of screws one at a time and see if I can push my way through this.

[Omnibus]

What I wanted to do was to actually build the device so that I could first hand study the actual dynamics. When you have a physical unit in front of you then you can feel the "tug' of the magnets over the screws. It is so much better than trying to guess or figure what should or is happening from diagrams and pictures.
With the device I have built I can turn the pvc about 25%. Again I will examine closely that range of screws and see how it compares with the rest of the configuration and replicate that one set of screws at a time on the surface of the pvc.
Maybe I'm wrong here but I don't believe that all this grinding is necessary. I think if this device can work ( and that's still up in the air)
then I need to replicate what is working on my device (that 25%) and replicate it.
I am going to be in Seattle, Wa. for the weekend so I won't be able to do anything with this until Monday.

You may be right about the grinding. This has to be demonstrated, though. It seems, however, pretty obvious that the repetition of the same patterns is crucial for the continuity. Therefore, the horizontal distance between the heads has to be the same and it seems this is something to be improved in your construction.

[hydrocontrol]

Zero,
 Thanks.. That was some of the details I was trying to find but did not have video expertise to dig it out of the video. Great job. It shows a lot of the information we really need to know.

All others,
 Observation. The bracket that holds the magnets may hold a vital key. I know he stated the bracket as aluminum here but on the youtube video I think he stated the magnets were stuck on the bracket. Not glued on. Normally magnets do not stick on to aluminum. If the bracket is not aluminum but some sort of magnetic blocking material like a mild steel then the bracket itself in the position that he has it will block the magnets magnetic field after the screw head has passed the magnet. This will have the effect of a sharp magnetic field edge. People that are already building a replication may want to attach the bracket as he did then add a plate of steel on the back side of the bracket to see if it alters or helps the spin results.

Later,
Tom

[CLaNZeR]

Excellent Input from everyone here and great close up pictures of the video that make more sense.

Will knock up a new Cylynder this weekend using the same screws and grind them down. Also will alter the pattern a little after seeing the Close ups.

Well done Bill on your replication so far.

Cheers

Sean.