Working Magnetic Motor on you tube??

[Omnibus]

For anyone doing the Junk yard challenge like me here is an idea to use for the dampers, I found one of these wind chimes at the local market, the tubes are aluminum, walls are not very thick, but while trying one out on my replication there was a marked difference in operation, not easy to explain, but stator AGW syncs easier and the wind down time seems longer than it does without the dampers, still in seconds, I'm continuing to experiment, will throw out more data as I get it.

Correct. That's what @CLaNZeR's graph showed as well--with dampers the wind down time is greater than without them and the form of the rpm vs. time curve differs from that taken without dampers.

[robbie47]

What puzzles me in @CLaNZeR's third video is the fact that the stator seems to turn uniformly.  Try to spin the rotor slowly and watch the stators.  Each one has moments of arrest in between spinning, at that not synchronously for the three stators. Probably at high speeds some averaging of the fields occurs which makes the spin of the stator smoother and yet keeping it AGW.

@ Omni:
At high speeds the stators are like small flywheels as well and therefore avaraging more than at low speed, don't you think?
Looks like the field strenght values are extreemly critical here.

Can't agree more.

@Omni,
I thought about your remarks a little longer.
At the final speed there must be a driving force that exactly compensates the losses (e.g. friction, air draft)
This makes the amount of losses extreemly critical as well and therefore the quality of the applied bearings.

At lower speed there must be a driving force higher than the losses at lower speeds, at least in Al's first video.
Also at lower speeds the avaraging effect of the stator will be less. There is most likely a wobbling phase effect.
This effect will still be there at high speed but less, due to the higher flywheel effect.
Mmmmmmm, need to think a bit longer on this still....

[CLaNZeR]

Guys I am trying to do tests from peoples suggestions as well as doing my own experiments, I have been on this 24/7 for over 2 weeks now and will get around to various suggestions that I am taking note off, even if not replying.

My 6061-T6 1/2 SOLID ROUND BAR arrived today, so cut a couple of bits off and quickly bodged into stator, and yep it does make latching easier
Not done any wind down tests yet too see the difference between the normal Alluminium dampners and using these ones.

I was looking at the base tonight and following the OC PDF http://www.overunity.org.uk/ocpm/OC_motor_011708.pdf

I drew up another Base as I wanted a exact base with no movement to do some other tests, but it just does not look correct.
AL was saying about the 5mm spacing between the Rotor edge and the Stator outiside surround and stating that it is critical. At 4mm the air gap is too little at 6mm the Magnet looses sync.



Cheers

Sean.

[Omnibus]

@CLaNZeR,

I guess @Jdo300 will comment on this better than anybody else because he studies these dimensions in depth and then got @alsetalokin's agreement.

Also, it seems to me the 5mm gap for the effect to appear refers to his particular stator to rotor magnetic field strength ratio in the first place (let alone the frictions etc.)  which we don't know and which isn't necessarily the same as the one we have in our machines.

[MeggerMan]

Hi Sean,
have you got a supplier for the 6061-T6 1/2 SOLID ROUND BAR?

Repulsion results:

N42 1/4"OD x 1/2" rod vertical repulsion = 31mm
N38 6mmOD x 12mm (6 of 6mm OD x 2mm discs) vertical repulsion = 28mm
N42 Ring 1/2" x 3/16" x 1/4 repulsion to N42 1/4"OD x 1/2" rod = 38mm
Tried both orientations with all the above and I could not see any difference.

Al's Results (from memory):
N?? 1/4"OD x 1/2" rod vertical repulsion = 30.5mm
N42 Ring 1/2" x 3/16" x 1/4 (with bearing) repulsion to N?? 1/4"OD x 1/2" rod = 37mm

Regards
Rob