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[sterlinga]

I've created a sub-page for this project listing the replications that have been attempted thus far.  Feel free to post yours, or to elaborate on the description given for yours at http://peswiki.com/index.php/OS:Screw-Magnet_Motor:Replications

Of particular note, not mentioned at this forum yet, that I can see, is:

Bossnik -- Enough Joy
Submitted on Oct. 20, 2007

"I have had marginal success replicating this device. I have flattened all screws and positioned them perfectly. I have gotten over 360 degrees of rotation(which I feel is very significant!) I am using an old stepper motor for a mount, but a smoother bearing might do the trick, UNLESS xpenzif's design incorporates the small bits of attraction and repulsion that you notice in a stepper motor when you try to spin it manually. Maybe he staggered the screws to line up somehow with that effect. I PM'd him asking about this and I'll post his response, this could be a key piece of the puzzle."

[eavogels]

Oops, major construction error in my replication. I forgot to flatten the outside heads. Good thing with hot glue: hot air to remove the screws again. Back to the work shop.
Eric

[Omnibus]

@klicUK,

Good luck in your replication. As for frictionless breaking system you mention, this has been a concern with Finsrud's machine too The supposition is that Finsrud's device is just a very efficient redistributor of the initially imparted energy. There are some very simple experiments which can exclude that possibility. Unfortunately, Finsrud hasn't been forthcoming in clarifying that issue. Here in this case, we would have grater possibility to conclusively answer this question after it becomes easily reproducible (this is a much simpler device anyway). Even at this point one may see that such a possibility (the device being just an efficient redistributor of initially imparted energy) is to be excluded--observe, for instance, the slowing down and then accelerating of the rotor etc. However, let's see the reproduction first and then discuss this issue.

[eavogels]

Now I flattened the screws and I mounted them back on the PVC. Sorry to say that I still meet a sticky spot when any screw head is passing a magnet. My replication is still not working.
(I also have to rest the index finger of my left hand after hot glueing the screws a second time.)
Eric.

[desimoni67]

Possible modification for this device....


Instead of gluing the screws on.  Why not screw them in. The process I am thinking about is screwing them all in to the head and then twist each other screw out a little bit more then the previous.   This would also help in testing out a couple of other setups without having to rebuild a new device.  Different configurations to test.  Lowest set screw to highest set screw around the full circumference and also trying lowest to highest that would occur 2, 3 or 4 times around the same circumference

[Pirate88179]

The supposition is that Finsrud's device is just a very efficient redistributor of the initially imparted energy.

That is exactly what I think is going on here.  If you look at the pictures of my device posted earlier, in preliminary tests(read testing before properly completed) I can get 5-7 rotatiions.  I am holding the stationary magnets in my hand and as I approach the cylinder it begins to spin on it's own and if I stop moving my hand closer, the rotation slows and finds equilibrium.  All I am doing is imparting a pulse by moving my hand as in the rotating magnet experiment video I posted some time ago.  At that time, Omnibus said that if I held the magnet ring in a fixed position there would be no rotation, and he was correct.  This was just a low friction device reacting to the impulses of the moving hand.

I am afraid that is what is possibly happening here as well.  Otherwise, why did he not mark the spot where the magnets (stationary) cause rotation and bolt, glue, fix, his magnets there to that spot as opposed to moving it with his hand.  The bearings on a hard drive set up like that, especially if he removed the windings, is very, very low friction.

I too will eagerly await the results of the replicators before deciding one way or the other, but I am leaning in this direction more and more.

Bill

[markdansie]

Dear Sterling,
"I have had marginal success replicating this device. I have flattened all screws and positioned them perfectly. I have gotten over 360 degrees of rotation(which I feel is very significant!) I am using an old stepper motor for a mount, but a smoother bearing might do the trick"

I could show a device that self starts and runs for at least 15 minutes...it appears to be a magnetic motor but isnt.. Sadly this new device would have to run for at least an hour to convince me anything was there as the action of bringing in the stator to the rotor can actually be the driving force itself.

I might also suggest old heads from a vcr make excellent bearings...they can spin for several minutes with the slightest touch.
Mark

[Omnibus]

The supposition is that Finsrud's device is just a very efficient redistributor of the initially imparted energy.

That is exactly what I think is going on here.  If you look at the pictures of my device posted earlier, in preliminary tests(read testing before properly completed) I can get 5-7 rotatiions.  I am holding the stationary magnets in my hand and as I approach the cylinder it begins to spin on it's own and if I stop moving my hand closer, the rotation slows and finds equilibrium.  All I am doing is imparting a pulse by moving my hand as in the rotating magnet experiment video I posted some time ago.  At that time, Omnibus said that if I held the magnet ring in a fixed position there would be no rotation, and he was correct.  This was just a low friction device reacting to the impulses of the moving hand.

I am afraid that is what is possibly happening here as well.  Otherwise, why did he not mark the spot where the magnets (stationary) cause rotation and bolt, glue, fix, his magnets there to that spot as opposed to moving it with his hand.  The bearings on a hard drive set up like that, especially if he removed the windings, is very, very low friction.

I too will eagerly await the results of the replicators before deciding one way or the other, but I am leaning in this direction more and more.

Bill

It doesn't seem so, though, in this case. That's why @xpenzif's device provoked such interest. He should have left it running for a couple of more minutes, however. Hope those who'll reproduce it will show it running longer with that initial adjustment move of the rotor (not push, actually) @xpenzif makes at the beginning.

[markdansie]

@bill
your observations are spot on. I have seen this many times on different devices.
I do appreciate all the replications and ideas put forward here. I remain open minded that something may come of this but at this stage I agree with you unless further evidence is provided. There has been a long history of devices that have failed to be replicated.
the next hurdle if one did run is to see if the magnets loose their power....
Kind Regards
mark

[Omnibus]

Dear Sterling,
"I have had marginal success replicating this device. I have flattened all screws and positioned them perfectly. I have gotten over 360 degrees of rotation(which I feel is very significant!) I am using an old stepper motor for a mount, but a smoother bearing might do the trick"

I could show a device that self starts and runs for at least 15 minutes...it appears to be a magnetic motor but isnt.. Sadly this new device would have to run for at least an hour to convince me anything was there as the action of bringing in the stator to the rotor can actually be the driving force itself.

I might also suggest old heads from a vcr make excellent bearings...they can spin for several minutes with the slightest touch.
Mark

Mark, show it running for 15 minutes while self-starting (and don't run away after that as @xpenzif and all the rest did). That'll do. This is a perpetuum mobile.