Magnet question

[TinselKoala]

Back in the Steorn Orbo days I did some very precise measurements of just how much the core's attraction did reduce, when a toroid coil is given a certain current enough to saturate it. It turns out that only a tiny reduction in attraction is enough to make an Orbo-type core effect motor run quite well.
I used a micrometer-adjustable height stand to suspend an accurate force gauge with a magnet in its tip, and mounted this over the toroidal coil, then put a known current thru the coil and plotted the force on the gauge as I changed the distance to the toroid core using the micrometer. Then I would test the toroid on the Orbette 2.0 testbed for performance. Just a few milligrams reduction in attractive force, out of many grams total, was enough to make the Orbette rotor spin well.

The point is, you still have to put energy in to shield or neutralize some attraction, but it doesn't have to be very much at all, and the amount can be so small that it's hard to notice. You would never feel the little force difference I noted above by hand, but it would make that Orbette rotor spin at hundreds of RPM.

[elecar]

Thank you both, I did take a look at the software but it is beyond what I am capable of dealing with. I have built several models and trialed them in the past, but last year I suffered a stroke and now I find myself with time on my hands to start playing again.
I am trying to get by without using any electricity/electrical components in the motor, so a true PMM.
I will construct a model based on my new design but I still fear the cogging and gate will be an issue and I may have to resort to electrical components later.

[truesearch]

@elecar:


It's sounds like you have some interesting experiments ahead of you. I hope you share what you discover here! 


You identified the "cogging" as a potential problem, let me suggest you get in contact with "robur" over at Energetic-Forum as his post suggests he has a work-around. . . (Link: http://www.energeticforum.com/renewable-energy/14107-magnetic-motor.html ).


Wish you the best!


truesearch

[elecar]

Thank you, I took a look and it seems he had the same problem "needing 2 shafts" I have got it down to one and will be starting a build in the next 2 weeks.

Here is an earlier one I was playing with.

[ace569er]

   The drawing interests me. Though it also confuses me...Anyways you can get a monopole effects, by two ways. At least, that I know of. One way is to use something   paramagnetic(something magnetic) That contains ether the north or south flux completely. While having the opposite partly contained. The attraction can be made weaker than the repulsion. Not that that has anything to do with what I was talking about. The other way is to simply use a V-gate drive.
   Which is (if center perfectly in the gate) uses only the repel or attract. Even though both poles stay active. They compliment each other instead of countering each other. Like most other arrangements. So instead of canceling each other out and not moving, the V-gate drives to the weakest/strongest point of the flux field. Depending on if using repulsion or attraction. Which is called the gate, sticky point, or lock.
    Now most try moving the drive magnet.  Moving it out of the lock range, is useless. Because you must use more energy to move it out of range. Then more to put it back and even more, to keep it there. Which is equal to or more than, it would take. To just push through the lock. An even smarter approach is the add more drive points to push the stuck arm passed the lock/gate, but the lock is 10x plus stronger than the gate's total drive. Depending on the distance, and degree of change over that distance, of the gate. So to test would need too many extra drive magnets which would have to be at the proper degrees yet far enough away so that there flux fields do not overlap. Meaning that it most be made very large. Also not practical for a test. So one only way is to weaken the gate in itself instead of trying to overcome it. By modifying the gate one can archive calibration.

Now combine both types of issues. Which gets both the simulated mono pole effect of a V gate.  As well as the counter push and pull,(non-single pole drive) to weaken the gates sticky point(lock). Making the lock no longer ten times, plus, stronger than the gates push, but instead, far, weaker than it.  While keeping the simulated monopole effect that drives(and locks) the movement. While at the same time increasing the drive force.
Making the locking point calibrate-able. Weakening the lock, or if overdone relocating, the lock. So that 11 armatures pushing the 1 can be far stronger than the 1 in the gate/lock. Also to get those degrees, wider then the flux field. It had to be 8 foot around, not good enough.  Unless....I could calibrate the lock, without weakening the drive. Then I figured out how.
Even though it is 10 times plus stronger then the drive. Depending on the the degree it opens within the length of the gate. After so much, the drive weakens. So Calibrating the lock is the only way to overcome it. Without going very, very large. To make sure there are no two armatures, are in a lock's field at the same time. While keeping the degree separating to achieve The same drive at all 12 points. At all times. So can anyone guess how to calibrate the sticky point? I have almost spelt it out completely...
Then Just for fun,.... add a overbalance and use Finsrud's design, to till it as it moves. As well as ,some other use of springs, pendulums, & a few other ideas. Of which I have never seen, any of these ideas I have, even partly combined. If even thought of, to hopefully make a beautiful, working, work of art. That has more power then just barely moving. So that some work may be taken from it. I'll tell more if anyone can guess what I mean, with my vague riddle like statements.

P.S. I repeat myself because I made this mostly from cuts & pastes. I don't like writing the same stuff twice. Sorry if it's harder to understand because of that...