Re-Inventing The Wheel-Part1-Clemente_Figuera-THE INFINITE ENERGY MACHINE

[bistander]

... Secondaries in the other hand NO!. Way to much eddies and Hysteresis. The problem with that is soft Iron is crazy expensive so that is definitely out.
...

Magnetic materials are mainly classified (based on the magnitude of coercive force) into hard magnetic materials or soft magnetic materials. The soft magnetic materials are often referred to as soft iron. The hard magnetic materials are often referred to as permanent magnet (PM).

Also, eddy current loss is virtually irrelevant with regards to choice of soft iron.
Look it up.
bi

[IMIGHTKNOW]

Well Clemente Figuera used it so go figure.   and yes I am very aware of the classifications of magnetic materials. The Hysteresis graph on pure iron is darn near a small sliver vertical column which I would equate with low losses. Very little pinning sites in pure Iron.

[bistander]

Well Clemente Figuera used it so go figure.   and yes I am very aware of the classifications of magnetic materials. The Hysteresis graph on pure iron is darn near a small sliver vertical column which I would equate with low losses. Very little pinning sites in pure Iron.

So now you speak of "pure iron" whereas before it was soft iron. Do you know the difference? And show a relationship of eddy current loss to hysteresis loop shape or pinning.
bi

[bistander]

For me, the only thing that remains incomprehensible is the purpose of a thick wire wound with a snake around permanent magnets.  Shown with a red arrow.
The ends are brought out, but not connected anywhere (not used).

Hi kolbacict,
I finally made it into the shop. I took a few pics of my motor where I found a heavy insulated wire wrapped around the magnets. This wire was unconnected at ends, which were tucked away in the casting with adhesive. Looked to be the same on other half of stator under the rotor. Rotor is called printed circuit although it is made using copper punchings welded on the inside and outside ends. Low moment of inertia. Application was old computer tape reel memory machine. Function of serpentine wire is unknown. Perhaps used to magnetize PMs and then left in place.
bi

[IMIGHTKNOW]

Nice Figuera device!, Do you know the difference?  that will keep the thread going.