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Author Topic: Working Magnetic Motor on you tube??  (Read 1328719 times)

CLaNZeR

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Re: Working Magnetic Motor on you tube!!!
« Reply #375 on: January 10, 2008, 06:00:55 PM »
@CLaNZeR,

You may have said it already but I've missed it, did you try measuring the rpm when spinning it by hand and what's the wind down time with and without the magnets?

Hi Omnibus

No not yet. I will do all that when I am happy that the height adjustments are all in place and I have everything ready to go.
Then I can do a spreadsheet showing the Dummy Runs and loaded runs with speed against time.


Charlie_V

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Re: Working Magnetic Motor on you tube!!!
« Reply #376 on: January 10, 2008, 06:31:29 PM »
Hey guys,

I don't have a lot of time to post this since I'm on my lunch break and my salad is getting cold... hehe.  All the effort here is really good.  This setup reminds me of Jon Depew's work with his magnetic gears and equilibrius grid: 

http://www.coralcastlecode.com/id28.html

Many months ago Jon posted that he had stumbled upon a great discovery (about the same time he blocked my AIM name because I suppose I was sending him too many messages :( .)  Anyhow, I wonder if he discovered something similar to this motor?  I think Jon describes the spinning gears as a resonant expanding magnetic field.  Perhaps the counter spinning magnet causes a resonant collapsing field which imbalances the wheel and causes it to lock into motion?  My salad is now completely cold!

Keep up the good work,
Charlie

MeggerMan

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Re: Working Magnetic Motor on you tube!!!
« Reply #377 on: January 10, 2008, 07:02:44 PM »
Hi Everyone,
I phoned e-magnets in the UK today and if we can get a big enough order together then they can get some diametrically magnetised disk magnets (not rings) made up. So what they have on their website they can magnetise diametrically, but only as a one off.
http://e-magnetsuk.com/magnet_products
They have 10,12,15,19,20,22,25,40mm dia and thickness of various sizes from 0.4mm to 10mm
The lead time is a couple of weeks though.

One interesting comment the sales person mentioned was that Neodymium Iron Boron (NdFeB) magnets are extremly difficult to demagnetise using another magnet.  Other magnets like alnico need to have a keeper to retain their magnetic strength.
Only heat and physically knocking a Neodymium will effect it.
N42 are ok up 80C.
Also they have some high temp N33 suitable for 200C, BUT and this is a big one, these are even harder to demagnetise in a demagnetising unit.
He said they had two very large cyclinder magnets in a vertical tube and they are apposing each other field wise, 8 inches apart and have been that way for 3 years. He said if the field strength was going to reduce, the gap would have reduced but it has not.
So therefore, I very much doubt that AL's setup will degrade the magnets even after running for months on end.
I remember reading that to demagnetise a Neodymium you need to overpower the existing field in the magnet with a stronger field in the apposing direction and with the rotor and stator gap being about 5mm or more, then this is not likely to happen.

I have had an email back from K&J magnetics in the US and they have the following in stock that I enquired about:
R834DIA
D22
D48
D4C

They have to state the exact value on the customs label and they cannot mark it as a gift, so try and keep your value below the 18GBP limit unless you are made of money.

Regards
Rob

CLaNZeR

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Re: Working Magnetic Motor on you tube!!!
« Reply #378 on: January 10, 2008, 07:17:03 PM »
Thx Rob for the Info.

A follow upto that is a Interesting post from Andy (NEO) of at Steorn today.

***********
I wouldn't expect any depletion in the current set up. The materials stability in terms of shape, coercivity and airgap will make them virtually impossible to lose any power. Only elevated temperatures above 120 deg c and high, stray, electro-magnetic fields in the order or 2 Tesla reversed through the sample will relax the domains. The action of the stator's alternating polarity on the rotor will have no effect in terms of losses.
Anisotropic Sintered diametrically magnetised NdFeB is relatively new in terms of particle alignment during the pressing cycle in that phase. Isotropic Bonded NdFeB materials (10 mgo) are more common for applications requiring this type of orientation. This may be relevent in terms of power to weight (torque) ratio of 35 + mgo materials. Anyway, well done so far, I'm sure the effect will help with continued study in this area.

There will be Bonded Neodymium version / experiment happening in the next couple of days.
***********

ken_nyus

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Re: Working Magnetic Motor on you tube!!!
« Reply #379 on: January 10, 2008, 07:26:44 PM »
I also remember reading somewhere on this forum, about a forum member who has kept two magnets clamped togther in replusion for almost a year(?) now, and with his measurements there has been no difference in the strength of the magnets. Don't have the reference handy but that is what I remember.

ebswift

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Re: Working Magnetic Motor on you tube!!!
« Reply #380 on: January 10, 2008, 10:11:43 PM »
Omnibus, keep playing out your fantasy role playing game.  Funny the thread you pointed to was a whole thread devoted to banning you.  None of the people you pointed the finger at were banned.  If you don't say things like 'I decided to leave' then nobody would bother bringing this up.

Jdo300

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Re: Working Magnetic Motor on you tube!!!
« Reply #381 on: January 10, 2008, 10:15:28 PM »
Omnibus, keep playing out your fantasy role playing game.  Funny the thread you pointed to was a whole thread devoted to banning you.  None of the people you pointed the finger at were banned.  If you don't say things like 'I decided to leave' then nobody would bother bringing this up.

Not to play referee here but in the interest of keeping the clutter in this thread to a minimum, would those who want to pick a bone keep it to PMs? I would rather read posts about people's build updates than this stuff.

Thank you,
Jason O

hydrocontrol

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Re: Working Magnetic Motor on you tube!!!
« Reply #382 on: January 10, 2008, 10:17:18 PM »
I second that..
Not to play referee here but in the interest of keeping the clutter in this thread to a minimum, would those who want to pick a bone keep it to PMs? I would rather read posts about people's build updates than this stuff.
Thank you,
Jason O

Omnibus

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Re: Working Magnetic Motor on you tube!!!
« Reply #383 on: January 10, 2008, 10:23:15 PM »
@ebswift,

Quote
Omnibus, keep playing out your fantasy role playing game.  Funny the thread you pointed to was a whole thread devoted to banning you.  None of the people you pointed the finger at were banned.  If you don't say things like 'I decided to leave' then nobody would bother bringing this up.

In the name of the current efforts, not to distract attention, I?ll let this go and won?t characterize you the way you deserve. Unlike your insinuations, anyone who?s curious may see that I withdrew and to post my withdrawal I couldn?t have been banned: http://www.steorn.com/forum/comments.php?DiscussionID=60135&page=1#Item_4 . Also, those who are curious may see for themselves who attacked who by following the links I gave, as well as the link @oak gave.

Stop cluttering the thread with your nonsense.

Bruce_TPU

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Re: Working Magnetic Motor on you tube!!!
« Reply #384 on: January 10, 2008, 10:32:01 PM »
I second that..
Not to play referee here but in the interest of keeping the clutter in this thread to a minimum, would those who want to pick a bone keep it to PMs? I would rather read posts about people's build updates than this stuff.
Thank you,
Jason O

I third that.

An idea, for you guys, is to open up a new thread, and call it debate.  This way any time people want to get into over something, they can take it there.  It works well on our TPU board.

Thank all of you, in advance for your courteous handling of this matter.

Cheers,

Bruce

Omnibus

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Re: Working Magnetic Motor on you tube!!!
« Reply #385 on: January 10, 2008, 10:38:08 PM »
Hey guys,

I don't have a lot of time to post this since I'm on my lunch break and my salad is getting cold... hehe.  All the effort here is really good.  This setup reminds me of Jon Depew's work with his magnetic gears and equilibrius grid: 

http://www.coralcastlecode.com/id28.html

Many months ago Jon posted that he had stumbled upon a great discovery (about the same time he blocked my AIM name because I suppose I was sending him too many messages :( .)  Anyhow, I wonder if he discovered something similar to this motor?  I think Jon describes the spinning gears as a resonant expanding magnetic field.  Perhaps the counter spinning magnet causes a resonant collapsing field which imbalances the wheel and causes it to lock into motion?  My salad is now completely cold!

Keep up the good work,
Charlie
Ideas such as this one have long been known to float around. Observe the almost cult following Searl's motor has, a motor based on just the same principle as this one. The big difference in this case is that the constructor didn't go away, isn't hiding behind NDA's and hangs around to instruct how to replicate it. As seen from what he writes, that's because he doesn't believe for one second it's OU. His opinion won't matter, however, should this motor be shown ny independent parties to behave the way it behaves in the video. Replicating it by independent parties is the real achievement in these matters, as I've always said and insisted that those secretive dreamers are really hurting themselves. They are double losers--neither they will become rich nor the credit for creating such device will go to them.

@hydrocontrol,

That is a non-issue and shouldn't be debated at all. Let's all stick to the replicating efforts and try to ensure that many people will have working (OU) replicas of this device.

ebswift

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Re: Working Magnetic Motor on you tube!!!
« Reply #386 on: January 10, 2008, 10:38:52 PM »
No problem Jason.  We had the same problem in the other forums with the omnibot.  I'll let the omnibot go.  I don't know who's picking bones though, I was picking a particular post that was an outright deceptive lie.  Or maybe this forum is the omnibot's place?

Omnibus

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Re: Working Magnetic Motor on you tube!!!
« Reply #387 on: January 10, 2008, 10:45:29 PM »
@ebswift,

Stop cluttering the thread with your nonsense.

ebswift

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Re: Working Magnetic Motor on you tube!!!
« Reply #388 on: January 10, 2008, 10:48:23 PM »
@ebswift,

Stop cluttering the thread with your nonsense.
@Omnibot,

I wasn't talking to you.

Charlie_V

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Re: Working Magnetic Motor on you tube!!!
« Reply #389 on: January 10, 2008, 10:49:53 PM »
I have a question which I'm sure has already been answered.  In the youtube video, when he stops the two magnets and the motor speeds up, I've heard it eventually slows to a stop.  However, what happens if he justs leaves all 3 stators spinning and does nothing, does the device slow down still or does it keep running an unknown amount of time?

Thanks,
Charlie