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A motor without electricity? Goto Page: 1 2 [>] [»|]

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Do you think this will work?
Yes!
26%
 26%  [ 5 ]
HELL NO!
42%
 42%  [ 8 ]
Could you be more clear?
31%
 31%  [ 6 ]
Total Votes : 19


Dryfolius

PostPosted: Fri May 12, 2006 5:07 pm


Yes, i have theorized a purley encased magnet system, surrounded with oposite polarity magnets all around it, to make a small pole spin inside of it, with magnets attatched to the pole with small extentions. And positioning the Magnets in certain angles, it will give you a spinning motion. Now if i had a more clear way to explain this.

Step one to starting this project.

Grab a cylinder. Then, get alot of magnets, hopefully really strong magnets, then get a pole, about 1/8th the size of the Cylinder. Then some how get extentions onto the small pole. About 2 or 4 small extentions. Then line the extentions with magnets, all having the opisite magnetic Current. then, within the cylinder, line the insides with slanted or ridged Magnets. Yes i know that the magnets Have a North and south pole, that is why i sugested the slanted magnets, and not really with all that many, depending on how many extentions you have, depicts weather how many Magnets on the inards of the cylinder. If i can think about putting this onto Paint or something to help explain this, it would be easier, which i think ill do later.

But my fear with this project is that it wont spin fast enough or strong enough for its intended design, which is for a small helicopter. Tho i read something about Gears helping with Tourqe, or strength. If you need a clearer out look on things, let me know please, i would like to try and get this to work.
PostPosted: Fri May 12, 2006 5:41 pm


User Image

Ahoy! The Small thin lines are the magnetic currents. if you can catch my drift on what is a magnet and what is the cylinder and what isnt. So basicaly, the magnets spin the pole around, creating a cool little twist and then creating the spinning motion i need for a small helicopter. tho the Weight of this will vary... extreamly, so basicaly, not enough lift pretty much, to many Magnets, loads of power, to heavy to take off. To little magnets, not enough power, but light enough. Now is there any way that you all think that electricity could buff the magnetic power on the pole that spins?

Dryfolius


VorpalNeko
Captain

PostPosted: Fri May 12, 2006 5:59 pm


I don't think I understand your specific arrangement, but in any case--it won't work as you think. Why in the world would you want to do this in the first place? With no source of power, the best you can do is for the motor to demagnetize the permanent magnets during operation, making it a kind of an uwieldly battery.
PostPosted: Fri May 12, 2006 6:06 pm


Hehe, no need to get uprisingly argumentitave, i was just thinking about something that might have worked. And can you explain how the magnets will become Demagnetized and making an uwieldly or unwieldly battery?

Edit:And to mention lets say that all the little thin lines are say... North polaritys, and i think superglue or something would hold that magnets into place...

Dryfolius


VorpalNeko
Captain

PostPosted: Fri May 12, 2006 7:07 pm


Dryfolius
Hehe, no need to get uprisingly argumentitave, i was just thinking about something that might have worked. And can you explain how the magnets will become Demagnetized and making an uwieldly or unwieldly battery?

Electromagnetic interactions conserve energy. If your motor does any work, it must extract energy from somewhere, and since you do not have any external power source, it must come from the magnets themselves. Some energy was involved in magnetizing the material of the permanent magnet, and the magnet cannot provide any more energy than that by itself.
PostPosted: Fri May 12, 2006 7:21 pm


Ahh great, i love your sense of logic, you have a great... knowledge pool, but i really wasnt meaning for this to be a motor of some sorts. Just to keep a constant spinning rotation, never ending, becuase of the magnetic pushing. Now, could you explain to me if having a bunch of magnets together could cause an electrical problem of a sort?

Dryfolius


nonameladyofsins

PostPosted: Fri May 12, 2006 9:01 pm


what you need is an electric current. You should probably look into 'solenoids' it's very similar to what you thought up. What you are alluding to is perpetual motion, as VorpalNeko said, the magnetic field does not do work. What you are looking at is the transition going from applying an electric current to actual motion.

If you have a wire, and electricity runs through it, and you wrap it around in loops such as this:
User Image - Blocked by "Display Image" Settings. Click to show.

you can make a magnet. By switching the direction of the current, you can change the polarity of the ends of the solenoid (a solenoid is simply wire wrapped in loops around a metal), so that at one point one end is north, and the other is south, and at another point the north end is now the south end and vice versa.

From your setup all you need is just two of those magnets with opposite polarity of course. You can place the solenoid between the two magnets in your box, make sure that each end of the solenoid repels the magnets in the box.

So the repulsion will push the solenoid to rotate, until it positions itself so that north faces south, that is when you switch the currents, thus inverting the polarity on the solenoid, and again making each end face its repulsive partner. At which point the rotation continues. It's slow, and you won't be able to power a helicopter with it, but its neat.
PostPosted: Sat May 13, 2006 11:49 pm


I think there is a possibility that it might work (with just magnets like originally purposed) with a special arrangement. I will scan and post my sketch asap for all of you to criticize. I will also try to do the experiment myself, it looks interesting. I will report my findings asap too, hopefully within couple of days.

bruce_lee_kicks_your_ass


Dryfolius

PostPosted: Sun May 14, 2006 6:10 am


Ok kewl, that would be great. Would be greator if this worked... But yea, solenoids might work, but im not saying anything just yet.
PostPosted: Sun May 14, 2006 12:10 pm


Dryfolius
Ahh great, i love your sense of logic, you have a great... knowledge pool, but i really wasnt meaning for this to be a motor of some sorts. Just to keep a constant spinning rotation, never ending, becuase of the magnetic pushing. Now, could you explain to me if having a bunch of magnets together could cause an electrical problem of a sort?


A constantly spinning rotation still requires energy. Unless we're postulating a completely and totally frictionless environment and that the axis is spinning anyway. Even the slightest loss of energy will cause the rotor to fall into a stable equilibrium state eventually.

Layra-chan
Crew


Cynthia_Rosenweiss

PostPosted: Sun May 14, 2006 6:17 pm


It's not going to work.... like poweroutage pointed out, what he's proposing is a design for a Perpetual Motion Device. He even admits this ("Just to keep a constant spinning rotation, never ending, becuase of the magnetic pushing"). There are plenty of variations on this theme, but generally speaking, all of them rely on magnetic repulsion and attraction between the rotor and the stator. Here are some other designs, which should give you some idea of the notion that he has in mind:



Needless to say, these don't work either. You know, because of the laws of physics and all that.
PostPosted: Sun May 14, 2006 9:32 pm


That are some links to some detailed websites and I should really finish reading them before I post this, but oh well... this way more people can test whether my arrangement works or not. Here it is...

User Image - Blocked by "Display Image" Settings. Click to show.

The four magnets on the corners should be strong to interact with the prefferably small and light magnets on the pedals.

bruce_lee_kicks_your_ass


nonameladyofsins

PostPosted: Sun May 14, 2006 10:25 pm


bruce_lee_kicks_your_ass
That are some links to some detailed websites and I should really finish reading them before I post this, but oh well... this way more people can test whether my arrangement works or not. Here it is...

User Image - Blocked by "Display Image" Settings. Click to show.

The four magnets on the corners should be strong to interact with the prefferably small and light magnets on the pedals.


kk man, just make it larger, you can't see it cleraly. When I didn't understand it, it didn't seem like it could work, but when I looked at the larger picture it made sense. So please. larger.
PostPosted: Mon May 15, 2006 12:01 am


bruce_lee_kicks_your_ass
That are some links to some detailed websites and I should really finish reading them before I post this, but oh well... this way more people can test whether my arrangement works or not. Here it is...

User Image - Blocked by "Display Image" Settings. Click to show.

The four magnets on the corners should be strong to interact with the prefferably small and light magnets on the pedals.


But what does it do? Your design looks an awful lot like a Perpetual Motion Machine. By "pedals" do you mean that you're going to link the magnets at the centre to bike pedals? In that case, are you trying to generate electricity from using the bike? That's impossible to do with the above design. Or to use the magnets to transmit the motive power to the wheels? In that case, there is already an invention that does that - the bicycle chain.

As for the design aspects, the "repel" magnets face the "pedal" magnets directly, but the attraction forces operate perpendicularly. You would do better to make the central part the stator, with strong magnets, and the four corner magnets the weak ones. Make sure that the corner magnets are in rotatable mountings, and are geared so that when one end of a stator magnet is repulsed by like poles, the other end is attracted by opposite poles. (That is, when the rotor has gone through 1/4 of its cycle, each corner magnet in the rotor flips by 180 degrees) As the rotor spins, the internal gearing would align the rotor magnets automatically. That would make a better design (at least in the abstract), but if your idea is that of a PMM, then the improvements that I just suggested won't help you achieve perpetual motion any more than your original concept does.

Cynthia_Rosenweiss

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Structures, Mechanics, and Materials

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