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Author Topic: The Bucking Magnet Motor  (Read 219036 times)

avalon

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Re: The Bucking Magnet Motor
« Reply #150 on: July 13, 2012, 05:53:53 PM »
I am astonished that all of that has been done by hand. Makes me feel completely useless as I rely on my CNC almost 100%.
Anyway, I am absolutely hooked and can't wait to see the end result.

All the best,

z.monkey

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Re: The Bucking Magnet Motor
« Reply #151 on: July 14, 2012, 01:08:06 AM »
Howdy Avalon,

LOL!  Your the guy dreaming about classic tools, while I'm the guy dreaming about CNC tools.
What a wonky universe, wut up wit dat? No matter what you got, you want something else.
You do teh best wit wut ya got....

I use drafting tools to mark the piece, and cut wide, then grind into tolerance.  Yeah, its time
intensive, but you can get a really good piece in the end.  It's not as tight as I wanted it to
be, but I was able to make up for that, somewhat, with the shunts.

The idea for the stator is to make a contiguous N-Field, or a two dimensional Quantum Singularity.
Just a ring that has a contiguous N-Field within it.  Then on the Rotor we vector the magnets
to propel the rotor.  Haven't quite figured that out yet, workin' on it.  A three dimensional
Quantum Singularity would be a sphere with a contiguous N-Field, which is impossible in
a three dimensional universe.  Kinda makes you wonder what a Star is....

Thanks for the comment, and good to meet ya...

Edit:  BTW look at the hit counter when I read this...

DreamThinkBuild

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Re: The Bucking Magnet Motor
« Reply #152 on: July 14, 2012, 05:00:34 AM »
Hi Z.Monkey,

Excellent work, glad to see you're still working on that bucking magnet motor. :)

Good luck also in your new business venture.

z.monkey

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Re: The Bucking Magnet Motor
« Reply #153 on: July 14, 2012, 05:21:18 PM »
Thanks DreamThinkBuild,

Are you implying that all this work might payoff someday?  LOL!   8)

z.monkey

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Re: The Bucking Magnet Motor
« Reply #154 on: July 23, 2012, 02:18:36 PM »
I often do things the wrong way, before I figure out the right way.  Lessons-n-stuff...
 
 When playing with the UABMM2, after installing the shunts, I thought "Why so Repulsive"?  Its a push, literally, directly opposing forces balance, as if the rotors magnet's are furled.  Why not try to swing them around the other way, and use the attractive forces as well as the repulsive forces.  I'm happy with the stator at this point, which is the race, or track that the rotor rides in.  So, looking to quickly test my theory I fabricated a test rotor out of plywood.

This is where the drill press broke, and I had to go run all over town to find a new belt.  Once I got back to work I made a 6 3/16 inch circle of 3/8 inch plywood.  I'm using a similar setup on the machine table that I used to make the Aluminum rotor, except that I am going to cut the cants with a saw.

I am only going to put 4 magnets on this one, at ninety degree increments.  Then also the cant will be ninety degrees, or perpendicular to the stator magnets.  This way one side of the magnet is attracted to the stator and the other side of the rotor magnet is repelled from the stator.

Once I got to cutting this only took a couple of hours.  After playing with the finished rotor I can see that I need to make an Aluminum rotor to try this full scale, 36 rotor magnets.  The plywood is too fragile to be a rotating assembly, and I had trouble getting 4 magnets to stay on.

When the rotor is spun it seems to be propelled a little, until the inertia, and the cross fields stop it.  This is why I need to fully populate the rotor to get the help of the uniform asynchronous idea, so not all the magnets are crossing the cross field points simultaneously.  Some are pushing, some are pulling, and some are on the cross points.  So now I need to go and find another piece of Aluminum.

z.monkey

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Re: The Bucking Magnet Motor
« Reply #155 on: July 25, 2012, 04:17:55 PM »
We I wasn't able to find a suitable piece of Aluminum laying around, but I did find a piece of Polyethylene.  The Polyethylene is structurally more stable than plywood, but also considerably softer than Aluminum.  I figured the Polyethylene would be suitable for a test rotor, to see if this unfurled idea works, then I replicate it in Aluminum.

I'll mark up the part using drafting tools by finding the center first, then draw a couple circles for the outer limit of the rotor, and the inner limit of the slots.  There will be 36 magnets on this rotor, so we'll use the compass to make ten degree increments around the periphery.  Then last thing to do before it goes on the Mini Mill is to make a half inch tooling hole directly in the center of the plate.

To hold the plate to the table I am using a T Nut, and a screw that has been modified to be jammed into the table to make the pivot point.  Then to hold it down I'll use a half inch Machine Washer, a Flange Nut, and a Lock Nut.  Line up the Pivot Point, the Mill, and the Drill Press Support Shaft to keep everything square.

The we'll do vertical cuts every couple of degrees around the periphery to cut the outer limit of the rotor, which is six and three eights inches in diameter.  Next we'll add some table clamps and cut the slots to hold the magnets.  The magnets are a quarter inch wide, so I am going to press fit the magnets in quarter inch slots.

http://scientilosopher.blogspot.com/2012/07/uabmm2-unfurled-2.html

z.monkey

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Re: The Bucking Magnet Motor
« Reply #156 on: July 25, 2012, 10:31:48 PM »
Here I've got the perimeter of the Poly rotor cutout, and got the Mini Mill setup to cut the slots.  It took a few hours to cut all 36 slots.  The magnets do fit tight, but its not like a jam fit like I want, so I'll need to find another way to secure the magnets.  I'm thinking about wrapping the perimeter with electrical tape, or if need be use epoxy.  I can't wait to get to testing.

z.monkey

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Re: The Bucking Magnet Motor
« Reply #157 on: July 26, 2012, 08:19:16 PM »
This morning I depopulated the eight degree rotor to put the magnets on the ninety degree rotor.   On the new rotor the magnets fit well in the slots, but they are not "jammed in" tight.  They need some help maintaining their position.  So I wrapped the perimeter with electrical tape for a test spin.  The electrical tape didn't last long, but I got a few spins in.  The rotor doesn't have the strong cogging like it had with the other two rotors.  It is much easier to start and spins longer with when you give it a spin.  Then the electrical tape tore, and bunched up in the clearance between the rotor and the stator.

http://scientilosopher.blogspot.com/2012/07/uabmm2-unfurled-4.html

z.monkey

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Re: The Bucking Magnet Motor
« Reply #158 on: August 29, 2012, 12:48:08 PM »
I haven't had much time to mess with the UABMM2 lately, been working on work for a change.

Had some interesting problems with a 377 pin micro BGA...

http://black-dog-technologies.blogspot.com/2012/08/dogboned-bga.html

But got those worked out, and hopefully into manufacturing...

http://black-dog-technologies.blogspot.com/2012/08/single-channel-pcie-board.html

Also did a logic design recently with 74HC CMOS Logic, that was cool...

Maybe soon I will be able to get back to working on the UABMM2...

FR Turbo

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Re: The Bucking Magnet Motor
« Reply #159 on: May 13, 2014, 06:01:48 PM »
Amazing amount of work done here...but what happened, thread went completely dead!?

z.monkey

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Re: The Bucking Magnet Motor
« Reply #160 on: September 21, 2014, 01:04:50 AM »
Been working on other things lately...

forest

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Re: The Bucking Magnet Motor
« Reply #161 on: September 21, 2014, 10:27:48 AM »
Been working on other things lately...
Oh , yeah..both powered by "The Bucking Magnet Motor". Congratulations.  :)

z.monkey

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Re: The Bucking Magnet Motor
« Reply #162 on: September 21, 2014, 10:41:12 AM »
Oh , yeah..both powered by "The Bucking Magnet Motor". Congratulations.  :)
No...  Both powered by some very kick ass gas turbine engines...

I had very little to do with either of those things.  I'm helping them do Qualification testing on their environmental systems.  I built some test boxes for their Fans in the air conditioner system, and we are going through RTCA DO-160 testing right now.  I'm using PIC16F1788 processors to do high performance Pulse Width Modulation Speed Control for the blowers on the condensers, and evaporators.  RTCA Aircraft Qualification Testing is one of the hardest things I have ever done, and I am winning...

Gas Turbine Engines Rock!
http://black-dog-technologies.blogspot.com/2014/01/learjet-25d-job.html

z.monkey

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Re: The Bucking Magnet Motor
« Reply #163 on: September 21, 2014, 11:16:56 AM »
This is one of my test boxes, and my new Velleman Oscilloscope...