FW: [CAD_CAM_EDM_DRO] hybrid stepper bias

-----Original Message-----
From: Miroslav Pejic
Sent: Wednesday, February 05, 2003 1:40 PM
To: 'CAD_CAM_EDM_DRO@yahoogroups.com'
Subject: RE: [CAD_CAM_EDM_DRO] hybrid stepper bias


Hi,
is there any possibility or method to magnetize rotor again?
Peja

-----Original Message-----
From: krnldmp <krnldmp@...> [mailto:krnldmp@...]
Sent: Tuesday, February 04, 2003 4:09 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] hybrid stepper bias


One of the reasons it may be hard to believe that removing a rotor
demagnetizes it is that it's a lot harder to demagnetize a rotor that
is already demagnetized. Alnico will keep a flux density of a few
kGauss for a very long time in free air. If your rotor is already down
that low, you can yank it in and out as many times as you fancy. If
you get a new motor and remove the rotor, you may as well remove it
again. See?


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