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Author Topic: The Bucking Magnet Motor  (Read 219006 times)

z.monkey

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Re: The Bucking Magnet Motor
« Reply #120 on: July 01, 2011, 05:05:35 PM »
There, got the plates cleaned up...
On to drilling and tapping...

z.monkey

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Re: The Bucking Magnet Motor
« Reply #121 on: July 02, 2011, 02:20:11 PM »
Got the stator drilled, tapped, and populated...
Look, its my first quantum singularity...

z.monkey

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Re: The Bucking Magnet Motor
« Reply #122 on: July 03, 2011, 01:44:09 AM »
Fixin' to drill, tap, and populate the rotor...
My fingers are very sore.  Like I have a sunburn on my fingertips.
Using various files to grind the cants, then placing the magnets
on the stator was very tedious.  Also have a lot of cuts from the
metal edges.  LOL! some holiday...
« Last Edit: July 03, 2011, 02:11:45 AM by z.monkey »

z.monkey

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Re: The Bucking Magnet Motor
« Reply #123 on: July 03, 2011, 06:07:13 PM »
I have the stator partially populated here, ran out of magnets...
Need to get another 30 on order.  The repulsion on this set
of plates is greater.  The clearance is only 50 mils, so the
magnets are a lot closer together, and they are facing each
other more directly.  If you give the rotor a push it will go a
few turns and then find that balance point and jiggle to a stop.
Hopefully when I get the rest of the magnets installed I will
have all those balance points covered...

z.monkey

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Re: The Bucking Magnet Motor
« Reply #124 on: July 04, 2011, 07:58:39 PM »
In that last post it should have been the rotor is partially populated...

Gee, lucky me, the price of neodymium magnets has suddenly gone up
by 30 to 35 percent.  Before I paid $1.72 for the 1/2 inch square magnets
and now they are $2.43.  The magnets that I want to use for NeoMag8
were $10.99 for a pair (need 4 pairs) and now they are $16.99.

Think this has something to do with China restricting rare earth materials?

z.monkey

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Re: The Bucking Magnet Motor
« Reply #125 on: July 06, 2011, 04:24:11 PM »
According to this article, China reduced their export quotas on Rare Earths
by 35%, so the result is the price of neodymium magnets goes up by 35%...

http://www.reuters.com/article/2011/07/06/china-rareearth-idUSL3E7I61UM20110706

But now Japan has found new sources of Rare Earths in the Pacific...

http://www.reuters.com/article/2011/07/04/rareearth-japan-idUSL3E7I406M20110704

I think I am going to wait a while before I buy more magnets.  I want to see
how this stupid market bullshit plays out...

CLaNZeR

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Re: The Bucking Magnet Motor
« Reply #126 on: July 08, 2011, 11:44:44 PM »
WOW really nice work, especially since all done by hand.

Good stuff mate

Cheers

Sean.

z.monkey

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Re: The Bucking Magnet Motor
« Reply #127 on: July 09, 2011, 12:59:38 AM »
Thanks, I appreciate it...

I am striving to make an industrial grade device.  Only building prototypes
now, so my manual control tools are sufficient.  But, in the future, if I need
to go to a production level, I want to get a CNC Vertical Mill, and a decent
Metal Lathe.  Actually I could use a Metal Lathe now for the DiaMag8...

So, maybe I could think of a few accessories for your Modular Rig...

eroutt

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Re: The Bucking Magnet Motor
« Reply #128 on: October 27, 2011, 11:37:38 AM »
what about this idea? 
http://www.overunity.com/index.php?topic=11591.0

my idea only use's one magnet sphere and is a little easier to build.
i think this will help you with your generator!

your motor may fail because of eddy currents slowing it down from the aluminum!
Google eddy currents.   

z.monkey

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Re: The Bucking Magnet Motor
« Reply #129 on: October 27, 2011, 11:53:16 AM »
Gee Eroutt, you must be psychic...
I just received the magnets to finish off the rotor.
Just fixing to drill and tap the rest of the rotor
magnet holes.  Your design does look significantly
less costly.  Maybe I tries it...

http://www.youtube.com/user/magikahn?feature=mhum
http://scientilosopher.blogspot.com/

eroutt

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Re: The Bucking Magnet Motor
« Reply #130 on: October 28, 2011, 12:24:11 AM »
never mind what i say. i changed my mind! >:(

z.monkey

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Re: The Bucking Magnet Motor
« Reply #131 on: October 28, 2011, 12:41:44 AM »
never mind what i say. i changed my mind! >:(
Huh?  Wut you say...
Don't get discouraged because of some rude peeps...
This is a learning experience for all of us, even me...

z.monkey

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Re: The Bucking Magnet Motor
« Reply #132 on: October 28, 2011, 01:06:18 AM »
Like for instance...

I finished drilling and tapping the holes in the stator.  I figured that I would put a series of magnets on there and see if I can get some motion.  Well, first of all its imbalanced with only 8 magnets on there.  The imbalance caused me to bend the shaft, and bust a knuckle.  Already had been working on a better way to mount the rotor, but had been working on other stuffz lately.  A quarter inch shaft is puny compared to the cumulative magnetic forces designed in the rotor, which are 360 pounds on the rotor and 400 pounds on the stator, opposed.  I'm gonna need to go up to at least a half inch shaft.  Can you say redesign?  Big Sigh...
« Last Edit: October 28, 2011, 03:01:38 AM by z.monkey »

z.monkey

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Re: The Bucking Magnet Motor
« Reply #133 on: October 28, 2011, 07:57:48 PM »
OK, here I have all the magnets installed.  This thing is dangerous at this point.  There are literally hundreds of pounds of magnetic force on both the rotor and the stator.  They both hate each other and love each other in that in one position they want to go flying apart, and an inch away they want to slam together.  The rotor weighs less than a pound, but when it is stuck to a metal surface like the refrigerator it takes a major effort to get it loose...

So, when I get the rotor in place the magnets will push one side of the rotor down, and the other up.  The shaft arbor and the little quarter inch shaft are mere pawns to these forces and just bend.  Having a one sided mount was an epically bad idea.  When I physically force the rotor to sit level there are no rotational forces that I can detect.  Its just a more complex situation of the magnets finding a static balance point and sticking there, HARD.  I'm beyond melancholy now.  I still want to believe that this can work, but after so much work and expense, and no results I have to say this is a failed concept.

While I don't just want to give up on this concept, I am going to need to redesign the way the rotor is mounted on the shaft, the bearing placements, and the methodology of bringing the stator into proximity with the rotor.  I have an idea in my head.  First we need a much sturdier shaft, 1/2 inch, and the rotor need to be very solidly fixed on that shaft.  Then the stator would move on the outer support rods, 1/2 screws, and would be a spring loaded, nut actuated engagement system.  Then also the bearings would need to be extra heavy duty, and mounted n the ends of the shafts so the magnetic forces can't bend the shaft around at will.  Total redesign of the mounting system, the rotor and stator would remain the same.

The first picture here is the rotor in position, and the magnetic forces bending the shaft to the physical balance point.  Looks pretty sorry.  Then the second picture is the loose rotor levitating over the stator.  The axle is preventing movement in the X and Y axises, and the magnetic forces are causing the rotor to levitate in the Z axis.

I had also thought about taking the magnets and building something else, perhaps some new alternator, or a levitating toy.  Right now I think I'll just go and get a bowl of Pho, and a nap...

eroutt

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Re: The Bucking Magnet Motor
« Reply #134 on: October 28, 2011, 11:56:59 PM »
would you like to help me with my project? i know thats a lot to ask! but i would like to at least prove to my self that it can be done. i have made the same thing you have at my shop that i use to have:( i had to sell all my tools to move. the magnet motors all failed but i did get it to go 180 then stop! i have tryed to build this but with out the tools i am at a loss! i am trying to build up my tools again but it cost's $ i figuerd out that magnets on magnets did not work for a motor. there had to be something to guide the magnet forward! and metal can do just that! but it has to be tapered to gain the speed to pass the 108 gate. and at the same time spin to surpass the 180 gate. anyway there is a lot of data for this that i can go on about. but its up to you?