Re: FW: [CAD_CAM_EDM_DRO] hybrid stepper bias

Clearly, as the manufacturers are able to magnetize the rotors in the first
place, it has to be possible.

The more interesting question is whether it is a practical thing for anyone
else to do. I suspect that depends on how much money you want to throw at
the problem and how many rotors you want to fix - and for remagnetizing a
small number of rotors, I strongly suspect that the cheaper option is to
toss them & buy new motors.

Regards,
Tony

At 09:15 08/02/2003 +0100, you wrote:

>SEEMS LIKE NOWBODY IS HEARING ME
>I'LL ASK AGAIN :
>
>Hi,
>IS THERE ANY POSSIBILLITY OR METHOD TO MAGNETIZE DEMAGNETIZED 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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Regards,
Tony