None magnet motor will work

[drsquires]

What type and grade of magnets were used? 
Please send description or drawings. 
Perhaps I can help solve the problem.   
If you want to send privately send to

djsquires@ultraplix.com

---D. Squires

[hallo]

Hi,
didn?t you want to post some infos about the motor ?

[gyulasun]

Hi Eoglasi,

Supposing you use several pieces of  permanent magnets in your motor my question is :
All your magnets get demagnetized or only some of them?

I would also be interested to read some more info on your motor solution.

regards
Gyula

[drsquires]

The only way the magnets should be demagnetized is if they are worked beyond the knee of
their demagnetization curve.  This could happen if the motor operated in repulsion mode and
there were significant eddy currents generated inside the magnets.  Otherwise NIB magnets
are very difficult to demagnetize.  If the operating point is higher up the curve then they
should not demagnetize.  PM motors use NIB magnets routinely and don't demagnetize them.
An all PMM should see similar behavior if the operating point on the BH curve is designed to
be in the right place.  If it actually operates on the knee of the curve then you could see
gradual demagnetization.

Regards,
DRS

[HardNor]

hmm - am i the only wondering why Eoglasi never showed some pictures or video material