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

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Directory:OC MPMM Magnet Motor

Image:OC MPMM magnet motor 95x95.jpg

Directory:OC MPMM Magnet Motor






&nbsp- OS:MPMM:Replications:Bruce TPU

&nbsp- OS:MPMM:Replications:CLaNZeR

&nbsp- OS:MPMM:Replications:vipond50

&nbsp- OS:MPMM:Replications:omnibus

&nbsp- OS:MPMM:Replications:AuthoroldHorseface



OS:MPMM:Related Sites


Directory:Magnet Motors

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Category:OC MPMM

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vipond50's replication of the Directory:OC MPMM Magnet Motor

An open source project.


On Jan. 19, 2008, Vipond50 (Bill Williams of OS:Joe Cell:Replications:Bill Williams fame) wrote: "Today after reconfiguration of the Stator magnets to a dual bearings, I had a approximately one minute self operation of the device and maintained a constant RPM once Stator Sync occurred."

The video he posted does not show convincing maintenance of speed for a brief period, due to the poor audio quality of his camera. He should use and display a tachometer.



(1:07 minutes)

OC MPMM - Magnetic Motor Research (by [ YouTube January 19, 2008)

'I have include a short Video of all three Stators operating in syc. Need to upgrade this camera, to much time in the field I guess." -- Bill (Jan. 19, 2008),3871.msg71719.html#msg71719

Latest Developments

Jan. 30, 2008

Ver. 2 photos posted

Jan. 22, 2008

Bill writes:

I am in the process of machining a new Rotor to what my measuring with AC indicates. I do know that if the rotor magnets are not at the correct radius there will be No Joy. If the New Mag's work out as i hope then I will post them to the Group. I do not want anyone to work this until I see it for myself. No point in the others spending there funding on some thing that may not function. I have found this out that latching will and can occur even though the magnet radius is incorrect.

Will update what happens after testing.

Jan. 19, 2008

vipond50 writes:

To All Replicators and Groups,

Today after reconfiguration of the Stator magnets to a dual bearings I had a approximately 'one minute' self operation of the device and maintained a constant RPM once stator sync occurred. Note: What I mean by " Self Operation' is NO outside added input to the device.

I added the second bearing to the stator due to instability to each arrangement. The instability induced friction and consequently drug down the rotor speed. Also with the device, I am able at any time during spin up to latch any of the three Stators at any given time. In addition this allows me to have any combination of the stators running in synchronization.

My next step is to spend the necessary funds to Source totally all Non magnetic parts i.e. Bearings, Fasteners, Rotor center support shaft, etc. to construct a higher quality device.

I also understand that this is a variant of the original concept, but basic Engineering dictates that this is the next step.

Happy testing and may Your Rotors Rev up.

Jan. 18, 2008

Look familiar? - (vipond50 posts photo of the rotor and stator spinning. He says it is from spinning by hand, no acceleration is achieved). (Jan. 18, 2008)

Image:Vipond50 MPMM replication 500.jpg


On Jan. 20, 2008, vipond50 wrote:

1. The Stator bearing is a R3-HA! manufactured by Bearings. This right off the box

2. The two bearings have a small thin washer" will mic " between them and another washer to give clearance off the base plate Will also get a Pic of the assembly layed out.

3. The Rotor mags are 1/4" diameter and 1/4" long N42's. I stacked them up (four) to give the length u see.

I machined a longer adapter to house the bearing

On Jan. 20, 2008, vipond50 wrote:

My mags are N42's 1/4" dia X 1/4" long. I stacked them(four). I did this so I could have some adjustably. I will post a stator disassembled for all to see the config.

Stator Assembly

On Jan. 20, 2008, Bill wrote:

Here's a few Pic's of the Stator disassambled.

The Adapter is made out CPVC 1/2" tubing, what I had on hand, but seems to work very well. I counter bored the ID of the tubing so to accept the two(2) bearings (0.320") and also counter bored the opposite end to accept the 1/2 diameter magnet. The Length of the adapter is 1.00"

Image:Vipond50 stator assembly bearing pars 400.jpg
Image:Vipond50 stator assembly bearing joined 300.jpg
Image:Vipond50 stator assembly bearing with stator 250.jpg


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. 20, 2008, 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.


OS:Joe Cell:Replications:Bill Williams - (See Shirakawa comment | Bill's response | Shirikawa again, followed by Bill again)


vipond50 - Bill's profile at