New permanent magnet motor on youtube from Roobert33

[Scorch]

I managed to get a little more accomplished this weekend.


I decided to try a different approach with the rotor by substantially increasing the spacing to 20mm centers (10mm spaces).
This because the previous rotor had the poles so close together, combined with a very stretched out, long, V, confined to the 2" width of the rotor, the stator magnet simply was not attracting the next pole and I couldn't even get a partial rotation from it.


I JUST finished assembly and will give it at least a day for the adhesive to set, before I can mount and balance, so it may be another week before I have anything to report.
If this fails to prove even a partial rotation, then the next steps would be a wider rotor with a better angle V, and longer stator magnet, and/or the introduction of magnets in place of ferrites.
Which I do have on order, in the form of 3/8"Diameter x 1/4"Thick ceramic disks from Edmond Scientific at only 7.95 USD for 100 disks.


Sure wish I could find a 1/4"W x 1/4"T x 3"L neodymium bar magnet!
Otherwise I have to use a 1/2"W x 1/4"T x 3" magnet, which I do have on the shelf, but it weighs twice as much. . .


}:>

[Arrow]

I managed to get a little more accomplished this weekend.

Sure wish I could find a 1/4"W x 1/4"T x 3"L neodymium bar magnet!
Otherwise I have to use a 1/2"W x 1/4"T x 3" magnet, which I do have on the shelf, but it weighs twice as much. . .

}:>

Dear Scorch
your V-gate is very interesting direction of development as far it is on pure ferrites.
Are you able to find time at next weekend and make flat gate as we have done?
If you have foam, you cam make holes on it , put the sticks on foam full depth and on the bottom of that submerged sticks you can have your bar magnet on 4 wheels like we have done.
If you will get result here the you can get result in round object such as rotor.
For bar magnet I can recommend this one:
http://apexmagnets.com/index.php?main_page=product_info&cPath=14&products_id=81
But I am not sure about right wideness as far I cant imagine the poles around of ferrites. see pic to understand what I mean
http://s58.radikal.ru/i160/1111/65/6784d7eaa2dd.jpg

Our working bar magnet have twice width to 2 magnets space on gate and we can guess that its need improvements, tests to find right dependence of bar magnet width   length and total step distance of 2 magnets. It is like here http://s58.radikal.ru/i159/1111/dc/01b0c0234610.jpg

What is your gate total angle?
Truly
Rob

[Scorch]

I am very tempted to make a flat gate just to learn more about these angles and what might work best for ferrites.


I can already see that its still not right on this rotor and still not able to accomplish even a partial rotation by holding magnet in hand.
Even a larger magnet is not working. Can't get it to attract to the next pole regardless of what angle I hold the bar magnet including the stronger, 3", bar.
The more I play with this the more I want to try replacing the ferrites with magnets.


And I am just not familiar enough with all the intricacies involving angles and field shapes but it's pretty clear this angle is still too shallow and need a much wider rotor for this size ferrites.
Not sure what you mean by "total angle". The angle on this is only about three degrees. (See attached)


I am curious what the result might be if the pole pieces of the rotor were actually "U" shapes which might result in carrying the 'incoming' magnetic force into the other leg of the pole.
If you approach one leg of a "U" shaped iron core with the north side of a magnet does this mean the other leg will become north pole and will have a momentary effect of repelling then attracting the incoming magnet as it passes by? Would this help us get past "sticky spots"? Or; am I way off course without instruments?


}:>

Dear Scorch
your V-gate is very interesting direction of development as far it is on pure ferrites.
Are you able to find time at next weekend and make flat gate as we have done?
If you have foam, you cam make holes on it , put the sticks on foam full depth and on the bottom of that submerged sticks you can have your bar magnet on 4 wheels like we have done.
If you will get result here the you can get result in round object such as rotor.
For bar magnet I can recommend this one:
http://apexmagnets.com/index.php?main_page=product_info&cPath=14&products_id=81
But I am not sure about right wideness as far I cant imagine the poles around of ferrites. see pic to understand what I mean
http://s58.radikal.ru/i160/1111/65/6784d7eaa2dd.jpg

Our working bar magnet have twice width to 2 magnets space on gate and we can guess that its need improvements, tests to find right dependence of bar magnet width   length and total step distance of 2 magnets. It is like here http://s58.radikal.ru/i159/1111/dc/01b0c0234610.jpg

What is your gate total angle?
Truly
Rob

[Arrow]

I am very tempted to make a flat gate just to learn more about these angles and what might work best for ferrites.


I can already see that its still not right on this rotor and still not able to accomplish even a partial rotation by holding magnet in hand.
Even a larger magnet is not working. Can't get it to attract to the next pole regardless of what angle I hold the bar magnet including the stronger, 3", bar.
The more I play with this the more I want to try replacing the ferrites with magnets.


And I am just not familiar enough with all the intricacies involving angles and field shapes but it's pretty clear this angle is still too shallow and need a much wider rotor for this size ferrites.
Not sure what you mean by "total angle". The angle on this is only about three degrees. (See attached)


I am curious what the result might be if the pole pieces of the rotor were actually "U" shapes which might result in carrying the 'incoming' magnetic force into the other leg of the pole.
If you approach one leg of a "U" shaped iron core with the north side of a magnet does this mean the other leg will become north pole and will have a momentary effect of repelling then attracting the incoming magnet as it passes by? Would this help us get past "sticky spots"? Or; am I way off course without instruments?


}:>

Dear Scorch hi

"U" shapes is absolutely from different "opera music" phenomenon. I am not able to recommend you anything that is not tested by me or us.
Do you remember this? http://s017.radikal.ru/i420/1111/0e/70484e06b7f4.jpg
here is the Cad model in DXF and PDF
http://depositfiles.com/files/he60k566s
try to do flat gate - extremely good field to test any such phenomenon and then to put it in circle shape if working.
Dont loose your weekends. Find running rotor or gate and then go back to ferrites.This is the way how I will go my job in this project
Ferrites is very interesting field but they dont have more attracting power than magnets, theory "running" around Ferrites differently than for magnets. It is waiting huge magnetic field to accomplish it own and that last accomplishment not such powerfull than if magnets will be instead of Ferrites. (КПÐ" очень низкий  в Ñ,аком режиме рабоÑ,Ñ‹) an output-input ratio is subzero!Ferrites will not work alone without magnets, they are good staff to shift magnetic field of nearby magnet!I dont know how to say ( explane) that exactly in English, sorry:( Ferrites are very good when there is electricity creating magnetic poles around them.

Truly
Rob

[mdlarouche]

I'd be willing to bet a working magnet motor is as simple as one lever and "two screws"...


a configuration the same as two screws... not two actual screws...


and of course the magnets.


If anyone already has one working they might know where I'm coming from.


Tell you more later!