LaFonte Group can turn off permanent magnet without work

[mscoffman]

Hi all,

...
He proceeds to show me a MAGNET BASE as used in the trade to lock down work pieces or hold precision gauges while marking or while using the lathes.
...

Regards, Penno

My father had one of these device in his workshop...I estimate they
were first used during WWII when folks needed machining done, asap.

And yes, the knob was somewhat hard to turn. But if we use
blf's idea...we would insert a ferrite ferrule inside where the knob is
and use a smaller magnet. This should eliminate the back force
and make it easier...The ferrite ferrule wouldn't turn with the magnet,
plus it would be sized using a magnetic simulator software to create
the "lighthouse" effect of field lines when it is turned. The backforce
is then stress inside the ferrite, and not felt by the knob. I guess I'm
forgetting the small gaps. Neo magnets can approach 1.0T Tesla in
strength. Even if the magnetic field disrupted the ferrite eventually
in this application it should be ok.

Anyhow that would be an interesting first test.

:S:MarkSCoffman

[Paul-R]

Here's a new variant from Butch's stable. It is a two magnet version:
http://www.youtube.com/user/LaFonteGroup

[hartiberlin]

This is really a great new design.
I guess it will be a winner
and it is a real good dragless generator.

Looking forward to see it realized in real hardware.
Don´t build it too small, so the magnetic losses
and hysteresis losses will not kill all the output.

Maybe one could use an old bigger motor
to modify it and see, how it works then ?

Many thanks.

Regards, Stefan.

[mscoffman]

But look at this one; This *is* real hardware.

http://www.youtube.com/user/LaFonteGroup#p/u/1/LNoVe4U9Bj8

This is by far easier to turn then previous magnetic
machining mounts. I detect a conspiracy. They
would of had to have known about this! This is
the apparent beginnings of a true back emf free
generator-alternator.

:S:MarkSCoffman

[Butch LaFonte]

This is really a great new design.
I guess it will be a winner
and it is a real good dragless generator.

Looking forward to see it realized in real hardware.
Don´t build it too small, so the magnetic losses
and hysteresis losses will not kill all the output.

Maybe one could use an old bigger motor
to modify it and see, how it works then ?

Many thanks.

Regards, Stefan.

Stefan,
The most amazing thing about this machine is that you can power the coils up with an external power supply and run large amp rates through them and the magnetic field that developes in the stator does not effect the rotor with respect to cogging. It turns as though there were no power be supplied to the coils. We used this method of testing early on to make sure that no motor action could effect the rotor during operation.
Mark is building the 8 magnet rotor (4 stacks of 2 magnets) at this time. We are looking for soft Ferrite powder for the stator, but having a very hard time finding it.
We have to have near zero eddy current in the stator to assure self running.
Regards,
Butch