Magnet motor idea hopefully solved

[Low-Q]

Could you not also use gravity instead of magnetism, where one side of the chain has more mass than the other?

Ref. my answer above.
Using heavier chain on one side will not work. It will follow the same principle as using unbalanced weights in the chain.
If the distance around each pulley is 1/4, 1/5, 1/7, 1/10 of the straight chain between the two rotors, the angular velocity around the pulleys must be 4, 5, 7 or 10 times faster than angular velocity of the rotors circumference - in order to keep the heavier chain on the same side all the time. This will counterbalance the kinetic energy both ways no matter how you design this, and therefor not work.


With magnetism, the rules of forces are different, because the magnetic flux paths from two magnets must be orientated more or less than 90° on eachother (parallell paths will have the strongest attraction/repulsion) to repel or attract. Magnetic flux paths that cross eachother 90° will have no impact no matter how strong the magnetic fields around each magnets are.
Therfor, the magnets that is going around the pulleys will have a field that is not longer parallell with the stator field. Also, there is no flux gradient that change around the pulleys as the magnetic array is moving around the, and therfor not held back like gravity does on the heavy chain.


Where the magnetic array goes from one polarity to the other, you will have a moving flux gradient, that will have an impact on the stator field, but if the pulleys are kept outside the statormagnet, this gradient is not moving inside a magnetic field while it is going arount the pulleys. Instead, the flux gradient is only crossing the stator field perpendicular to rotation. The moving gradient will attract or repel when entering the field from the top, but the same when it leaves the field at the bottom, with a netto force that cancels out.
The only field gradient we are left with, is the straight parts of the magnet array that has its own torque in the same direction.
The torque that is applied here will force the rotor to turn, just like when you want to loosen or tighten wheel bolts when changing wheels on your car. The torque around the wheel bolts is outside the wheel hub, but without applying brakes, the wheel will turn as you try to tighten or loosen the bolts.
The straight parts of the magnetic arrays is the "tightening wheel bolts" in this case, forcing the rotors to turn. That is the idea. I cannot figure out what stops this from working, but I do not say that this works in real life as I imagine it will


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[Low-Q]

I just ordered 400pcs of these cylindrical magnets.
Magnetized througn length. N50 "China strength" - probably N35 or so.
These are perfect for making a magnetic chain. Just 3D-printing links and make long chains that is stable with low friction.

[Low-Q]

Here is the drawing I use as basis to print out parts for the magnetic chain.

Arrows explains how things work.

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[Low-Q]

Here is the visual explanation. Look at the chain as it rolls backwards in pos 1 - 3 where the stator field is weakest. then the wave is kept polarized in repulsion mode away from North and attraction towards South until the chain change polarity after 180° rotation (Just like the rotor in an electric motor). The chain is supposed to be arranged as multiple waves around the circuference, but it takes too much time to draw everything. The example of a partial chain is just for simplicity.


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[Low-Q]

Testing the mechanical concept with 5mm bolts.
The complete build will be LARGE. Looking at this one piece, and I need at least 8 pulleys on both wheels to minimize the twist of chain between the pulleys, and lots of chain. I'm not yet sure if 400 magnets will be enough...



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