The Bucking Magnet Motor

[eroutt]

never mind what i say. i changed my mind!

[z.monkey]

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]

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...

[z.monkey]

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]

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?