This is a long post and I hope it is a good read.  Permeability is the magnetic conductivity of a material.  A higher permeable core will have a greater attraction for the rotor magnets than a low permeable core (I hope I got this right).

Now let's take a look at the "Expanding Field Model".  Let's assume a new flux-line begins as an infinitesimal small loop around the primary-wire. Since loops can not overlap or cross, this new loop must physically displace pre-existing loops outward when it is created.  Therefore magnetic fields must expand from, or contract to, the source wire.  This expanding field method is the only way that a magnetic field can expand (or contract) without violating Ampere’s Circuital Law.

The permeability of the core affects the number of flux lines that will pass into the space contained by the secondary when the primary current increases.  It is not hard to see that with increased core permeability, more flux-lines pass into the interior of the secondary for any given increase in primary current.

I hope this is helpful in replicating a Lenz free motor or even a motionless OU Generator.


GB

Permeability is the magnetic conductivity of a material. 
A higher permeable core will have a greater attraction for the rotor magnets
 than a low permeable core (I hope I got this right).

Hi all,

In a positive note and a question, can we assume that those toroidal coils have a very low permeability to allow them to switch the core off with that few turns coils on them?  With even all 4 coils in series, we arn't looking at more than .5 to 1 ohm I would say and peak current with a NIMH battery in the 1.2 to 1.3 amp range.  Ideas, comments from builders???

Ho Ho HO to alllllllll......

 Permeability in the case of the orbo is meaningless. A relative permeability of 200 or 1 000 000 will probably give the same torque and will need the same current. The magnet is emitting a certain amount of flux, both cores will be able to capture most of it about equally. The most crucial part is amperage not permeability or core saturation. The magnet can be seen as a very strong coil, what needs to be done is finding an equivalent amperage and amount of turns to cancel the field of this magnet, wether you choose 1000u core or 1milu the amperage to cancel the field will remain almost equal.

So when picking a good material anything above 200 and is non conductive is good. The only property that should be inspected is coercivity, this property should be as low as possible as it has no use in the orbo besides heat loss.

To sum it up:

-Anything above 200 relative permeability gave the same force attraction in my simulations.
-Use a soft magnetic material that doesn't retain magnetic strength after the field is gone.

@broli
If you honestly believe that the properties of the components has little or no relevance to the operation of this device or any other for that matter then I am afraid life will be very hard for you. I have found that in fact---everything matters and nothing should ever be considered as irrelevant. This is the difference between knowledge, understanding and success versus blaming others for a lack of the former.
Regards
AC