I have a motor idea.......

[kfxguy]

This isn't quite about boats but it is about motors. Sort of. Well it is but read on.....

I've been thinking about this idea for quite some time. So you guys know how a motor has magnets on the rotor and an energized coil surrounding it. Energize it and it creates an opposite magnetic field which repels the rotor magnets and in turn, makes it turn. Why not use strong magnets in place of the stator and the magnets should repel each other causing the motor to turn. You guys think this would work? I kinda already started on it, I disassembled a burnt up leopard motor (kinda ugly but the only motors I've come across fried was leopards lol) and made a tool to press out the stator. Now I just have to get some suitable magnets and jb weld them in place.

What's the point? I know, seems pointless right because once you put the rotor in you won't be able to control it in any way. Unless there was a brake of some sorts made. My thought process is to have it drive a brushed motor and create an alternator of sorts. On a small scale, that would pretty much charge indefinitely. But if it did work, imagine a larger sized one driving a generator head. Stupid idea? Just dreaming.....lol

[Fluid]

I'm not certain I understand what you are trying to accomplish here. It seems you are describing a perpetual motion machine, which of course is impossible to build. What external power will be used? Sorry, please elaborate for us.


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[NativePaul]

I'm not sure if you are serious, if you are, I have a bridge I can sell you.

[Erroneous]

Are you thinking of energizing the magnets? If so, isnt that how the magnets get polarized to begin with? Free energy machine would be sweet tho.

[kfxguy]

Lol guys. Let me elaborate. May not even be possible, I never even researched it before until now. Seems like even though you flip the n side to face the s side it will still attract as the magnet passes over the other magnet. I wasn't thinking of it that way. From what I've seen it looks like there's an elaborate design that will overcome this but doesn't seem to be worth it. Was just a silly idea I had, thinking if magnets repel each other....then why not make them repel each other in a circular motion.

[kfxguy]

I'm not sure if you are serious, if you are, I have a bridge I can sell you.

How much?





Lol

[kfxguy]

I'm not sure if you are serious, if you are, I have a bridge I can sell you.

I guess I was until I read up on it. Seems like it's been done. Then others say it's impossible. Was just thinking about trying it just for kicks.

[Jesse J]

What box? I have no box, just thinking! Way to set your mind free!
It's only impossible until somebody demonstrates that it ain't!

[Fluid]

Basic physics says NO, but anyone who tries something new is okay in my book. Failure leads to increased knowledge and demonstrates a free spirit!


.

[Jesse J]

Ya, all those hundreds of times Tomas edisons creations didn't illuminate just proved how NOT to make a light bulb...

[Speed3]

I cannot work, they is an animation that you can find online for different pole motors. 4, 6, 2 and others. If you look at the animation you will notice the ESC charging different point around the stator and constantly switching to keep the motor rotating.

That is only possible through electromagnetism. A rotor in the middle which have permanent magnets and the stator on the outside with electromagnets. This being the in runner design. And the out runner being opposite to the in runner.

You theory would have taken electric motors to much greater levels of torque if it was possible.

I did some experiments with magnets, electromagnets, in various sizes, different size of metal. I looked at many factors that influence the strength of the repelling force inside the motor. In hope of finding what's the most ideal design for a brushless.

I can tell you neu, leopard and tp are 3 different brands of 4 pole motors and each one is a lot different in how function internally.

The strenght of stator magnetic field, the quality of steel used for the stator, the quality of wire used to wind the stator. Is the most import.

Anyone every hear about ampere turns, the higher the ampere turn the great the electromagnet with all other things being equal. I confirm that through experiments, having said that the D winding design will have the higher ampere turn than the Y winding design. So the D will accelerate harder and should hold the rpm a little better underload than the Y design. Base of the ampere turn rule.

Bigger metal will create a stronger electromagnet.

A rotor with a stronger magnet field will be more powerful than one of a weak field.

Some of these motors the difference are not so obvious.

[NativePaul]

kfxguy, Adjusted for inflation I think the going rate for a UK bridge is 500,000,000 plus shipping and handling, are you anywhere near Lake Havasu?


Speed 3, The way I see it is that although the D wind has a higher ampere turn, you need less turns of a Y wind to get to the same Kv, so you can use thicker wire which brings the ampere turn back up to parity. Although in reality the finite number of wire gauges mean that there will be slight variations in the mass of copper that can be fit into each wind type, which is where the differences come in.

[Speed3]

The point I am making is the d wind have more turns for a given kv so when loaded if the two is pulling 50 amps the d wind will have higher ampere turns. Resulting is a stronger electromagnetic field.

[kfxguy]

I cannot work, they is an animation that you can find online for different pole motors. 4, 6, 2 and others. If you look at the animation you will notice the ESC charging different point around the stator and constantly switching to keep the motor rotating.

That is only possible through electromagnetism. A rotor in the middle which have permanent magnets and the stator on the outside with electromagnets. This being the in runner design. And the out runner being opposite to the in runner.

You theory would have taken electric motors to much greater levels of torque if it was possible.

I did some experiments with magnets, electromagnets, in various sizes, different size of metal. I looked at many factors that influence the strength of the repelling force inside the motor. In hope of finding what's the most ideal design for a brushless.

I can tell you neu, leopard and tp are 3 different brands of 4 pole motors and each one is a lot different in how function internally.

The strenght of stator magnetic field, the quality of steel used for the stator, the quality of wire used to wind the stator. Is the most import.

Anyone every hear about ampere turns, the higher the ampere turn the great the electromagnet with all other things being equal. I confirm that through experiments, having said that the D winding design will have the higher ampere turn than the Y winding design. So the D will accelerate harder and should hold the rpm a little better underload than the Y design. Base of the ampere turn rule.

Bigger metal will create a stronger electromagnet.

A rotor with a stronger magnet field will be more powerful than one of a weak field.

Some of these motors the difference are not so obvious.

Good info. Thx. I just thought it would be a fun project with me and my 17 year old son, teaching him about motors and how things work. In my preliminary tests I've experienced where the magnet would push the rotor a small amount and then stop. Basically like cogging.

[kfxguy]

kfxguy, Adjusted for inflation I think the going rate for a UK bridge is 500,000,000 plus shipping and handling, are you anywhere near Lake Havasu?


Speed 3, The way I see it is that although the D wind has a higher ampere turn, you need less turns of a Y wind to get to the same Kv, so you can use thicker wire which brings the ampere turn back up to parity. Although in reality the finite number of wire gauges mean that there will be slight variations in the mass of copper that can be fit into each wind type, which is where the differences come in.

I hope you don't think I'm an idiot for posting this, I'm one of those people that like to try things other people say won't work. Sometimes there's success, and sometimes there isn't. But I have fun trying regardless.