Magnetic OU principle, You should really take a look at this !

[Yucca]

Hi all !

Quadraticaly shaped washers are must !!!
- Round washers wan't work cause they are close to magnets only In two points . that point cause of very small surface emidiately saturate and can not conduct enough flux. so don't make experiments with rounded washers. Much more force will be produced if quadratics are used cause much more flux will pass through them and allso repel one on another with gretaer surface. Whole edge (quadratic) is close to magnet and recives flux, not just one point (rounded).

- quadratic washers allso balance whole setup. magnets easily leaves washer stack cause they are already attracted to another washer stack.

if missed - read posts 89 and 115 see the animation (post 89). It reveals everything the way it should be done -  magnets easily move from one stack to other, if rounded are used it is not so.

before proceeding any further You must understand this.

Wiz

All good points Wiz, squares or rectangles will definitely be best.

Also we need to keep the steel only within the parallel field flux path. Once we move into the bulging field (mag edges) then I think you get crosstalk between the forces, i.e. the magnets begin to see the seperating steel forces.

Also I think the best permanent magnet design may be where the magnets only move toward and away from each other thus increasing and reducing the flux density between them. The steel plate stack is then placed in this varying flux path and the alternating seperation force may then be harvested for free and/or fed back to the magnet moving mechanism to give a self runner. This would be best design because flux line cutting and thus eddy current losses will be minimised. It's a close mechanical analogy to the solenoid electrical solution.

Yucca.

[rha8b]

Hi all !

Quadraticaly shaped washers are must !!!
- Round washers wan't work cause they are close to magnets only In two points . that point cause of very small surface emidiately saturate and can not conduct enough flux. so don't make experiments with rounded washers. Much more force will be produced if quadratics are used cause much more flux will pass through them and allso repel one on another with gretaer surface. Whole edge (quadratic) is close to magnet and recives flux, not just one point (rounded).

- quadratic washers allso balance whole setup. magnets easily leaves washer stack cause they are already attracted to another washer stack.

if missed - read posts 89 and 115 see the animation (post 89). It reveals everything the way it should be done -  magnets easily move from one stack to other, if rounded are used it is not so.

before proceeding any further You must understand this.

Wiz

Hello all, I know I'm new here (and especially to this thread), however just wanted to confirm what wizkycho stated above, circular washers are indeed not as good as quadratic shaped ones. I did a bench test to replicate the basic repulsion effect and noticed this almost immediately.

Keep up the valuable research,
-rha8b

[Yucca]

What wizkycho just said makes a lot of sense. The only small problem is finding square "washers" :p.

Yup, can't buy them off the shelf but you can buy square steel nuts, but then you also don't want a hole in the middle. I will soon have an old washing machine to scrap for parts, I will be using a dremel wheel to cut nice strips and squares out of the steel chassis parts. May also get a couple of nice iron core solonoids, don't know what voltage they take yet though?

Yucca.

[drsquires]

This is to confirm what "Yucca" said in post 149.   If you guys are to understand that the cogging
forces or torques are irrelevant if they are equal for collapsed and expanded states you must
have some math background in calculus and understand the process of integration. 

Integration is the calculation of the area under a curve.  The torque curves or force curves for
this effect with regard to the forces of attraction to the steel plates or elements of the active
structures are the same for collapsed and expanded states.  So you have one side that
is a POSITIVE X area and the exit side a NEGATIVE X area.  The average of those as a simple
algebraic sum is zero.  X - X = 0  Therefore the cogging torques or forces fall out or cancel out
of the total net force or torque equation.  These forces are only a consideration for vibration and the
need for special structures strong enough to handle those forces.   But that's just engineering
and does not negate the main principle for development of high efficiency motors of various kinds.
There are ways to cancel the vibrational aspects as well and totally cancel the cogging forces
by always keeping them in balance or perfectly cancelled at all times. 

Cheers,
Dave Squires

[Butch]

Yucca,
Great progress you are making. As with so many inventions this will continue to be optimized for hundreds of years to come. It's the original invention that is the hard part. It will be interesting to see the improvements when it gets to the big labs and universities. I also wonder what will be found using a super computer. At the moment it is for the most part only known by the overunity list which is only about .0000000001 % of the population. It will be interesting to see optimizations and improvements that develop when it becomes common knowledge with the general public. It's going to be fun watching this evolve. I'm so lucky to have seen the overunity potential in the sheet metal fanner magnets I used as a young man.
Great job your doing,
Butch LaFonte
The LaFonte Group
Birmingham, Alabama