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Lasted edited by Andrew Munsey, updated on June 15, 2016 at 1:32 am.

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Nikolabackwards / Alsetalokin

The person who build the first device, shown on YouTube, which launched this whole open project, has done quite a bit of testing.

Acceleration Audio


(32 seconds)

Peak Frequency Analysis of OCPMM acceleration - A visual audio file of the acceleration in Alsetalokin's first video, during the last portion of the video in which he holds two of the stator magnets stationary. (YouTube January 10, 2008)

Spectrum analysis of Al's first video "I sampled Al's video three times at two different places, for a total of six samples as shown in the figure .... Three analyses were performed for self-sustaining rotation at 1700 rpm [three rotating stators]. Another three at 4700 rpm -- after acceleration [one rotating stator]. I've included some basic observations in the figure below. Al's voice-over didn't make this easy." (Yadaraf February 04, 2008)

Run Time

Nikolabackwards has run a number of tests, observing gradual slow-down. On Jan. 11, 2008, he ran an endurance test, in which the device ran for 7 hour 27 min, at which point he shut it off so he could go to sleep. At the end of the test, the RPM was: Rotor 1257, Stator 5030

Two Steorn Forum posts regarding this test:

About magnets

"I have done some rough strength measurements on the rotor magnets (I got them from a surplus store in downtown TO, and I think I got the last 20 they had). They are nickel-plated NdFeB's with estimated energy product 35-40 MGO. The field viewing film doesn't reveal anything obvious."

Rotor-Stator Speed Ratio

Appears to be 1:4

There is a good link on this at showing Al's data, and the ratio between stator speed and rotor speed over a range of speeds.

- - - -

On Jan. 20, 2008, OS:MPMM:Replications:vipond50 [h,3871.msg71981.html#msg71981 wrote]:

I did a count by hand a found that the stators rotate four(4) rev's/ one(1) rotation of the rotor.

- - - -

On Jan. 19, 2008, vipond50 wrote:

Was looking at the Rotor to Stator ratios and logged these numbers.

Hand spin up with one Stator in Sync and the other Two stopped.

Rotor RPM - 667

Stator RPM - 2230

R = 3.348 to 1

Second Attempt

Rotor RPM - 736.3

Stator RPM - 2542

R = 3.4523 to 1

- - - -

On Jan. 21, 2008, RunningBare wrote:

I used my sound card and constructed a transducer consisting of a ferrite core and around 20 turns of copper wire, the measurement is taken approximately 1 inch from the stator while I maintained AGW lock by spinning the rotor manually.

What your seeing is 2 cycles of the stator.




! O []



Exclamations represent rotor edge.

"O" represents stator

[] represents transducer

And here is a 28 second audio sample

No-Stator Run-Down Time

CLaNZeR performs some weighing and wind down tests with NO stator magnets - 199 grams. "The little 3mm RC bearings top and bottom give a good 4 minute wind down from 1000RPM with Rotor Magnets." (Jan. 12, 2008)

Video of no-stator wind-down (wmv)

Video of spinning by hand v. by air hose by hand gets ~500 rpm.

"BTW I span it [with air hose] up to 4000 RPM without magnet just now and it started too lift off the table at 2500 RPM, so Blue Tacked the feet down and they are only just staying there at 4000 RPM, so be warned LOL" [is he joking?]

- - - -

On Jan. 20, 2008, Omnibus wrote:

Seems that the original positioning with the three stators and two almost opposing stators give better results. Here are some very preliminary results I just obtained for the original 3 stators positioned as in the video. When rotor spun by hand (no AGW attempt) average spin down time of five attempts is around 15s. Same initial spin (~300rpm) with successful AGW of one of the stators (the leftmost from the video), the two other stators held non-spinning, average spin down time for five attempts around 35s. Again, these are just preliminary results.

Spin down time of a lone rotor (no stators) -- about 220s.

Al's Wind-down Tests

Here are the speeds in alsetalokins words

Wind down test from alsetalokin

Rotor-Stator Interaction


(4:57 minutes)

Stator magnet is repelled from turning rotor, when the stator magnet is not in motion. When stator magnet gets in sync, it is drawn to the rotor.

Mock Up Vid 1 - In validating some of the scope traces and sync ratios I slapped a workable test rig up out of spare parts I had laying around. AGW sync is shown. (YouTube January 15, 2008)

Harvey's explanation at

Mock Up Strobe Stills 1 - Harvey provides slide show of still shots from stroboscopic lighting. (YouTube January 16, 2008}

Harvey's explanation at

Magnetic Fields

On Jan. 22, 2008, PolyMatri wrote:

Magnet holding Feromagnetic liquid in dish, Notice the pattern.

Make your on Feromagnetic fluid (Not recomended and toner gets everywhere!)

Inter reaction between ferrofluid and turning magnet

Pattern 1

Ferofluid in rotating field (1)

Ferofluid in rotating field (2)

This is the one I was thinking about in association with the @AL-rotorwheel.

Magnetic Sync


(15 sec.)

Equilibrius Grid - "New Scientific Discovery" by John DePew (YouTube October 19, 2006)


(15 sec.)

Re: The OC MPMM - Alsetalokin's Video [2008/01/04] - Free spinning gears. Driven by magnetism. Gears made out of ballbearing balls and strong magnets. Original by John DePew, (YouTube January 07, 2008)


Magnetic Sensors

On Jan. 20, 2008, fritz wrote:

I have some experience building magnet sensors using Philips/NXP:

KMZ10A +/- 0.5kA/m = +/- 625uT

KMZ10B +/- 2kA/m = +/- 2.5mT

This stuff is probably way to sensitive - but using it in a metal core as shunt

can give nice sensors.

If somebody is interested, pls. contact me.

Anyway, using a spring gauge to check attract/repell forces is a very easy

way to match the magnets.

Another idea would be a setup to degrade magnets with a strong m field,

checking the field after every degrade cycle to achieve exactly matched magnets.