Re: remagnetising old magnets

From: Sam Goldwasser (sam_at_saul.cis.upenn.edu)
Date: 10/09/04 

Date: 09 Oct 2004 12:55:19 -0400

PaPaPeng <papapeng@yahoo.com> writes:

> On 9 Oct 2004 09:12:48 -0700, numanracing@tiscali.co.uk (NumanR)
> wrote:
>
> >The motors are used for racing r/c cars, now please take this
> >seriously as there is a tool on the market which costs £600 which
> >appears to be just a high strength magnet.(This is used before each
> >race by the top racers) What I want is a cheaper alternative, or an
> >idea to help me build wht i need. The magnets are subjected to heat
> >and I think this effects the magnets. I cannot stop the heat but if I
> >could top up the magnets each time then this would help. Thanks for
> >your ideas.
 
What I had already suggested via email is to try using the rare earth
magnets from a high performance harddrive to see if this is possible.

Experiment with a pair of magnets from a dead motor - one to test and
the other as the "control".

Of course, if you can affect the magnetizism at all, it would be possible
to reverse the field or magnetize the megnet along any arbitrary direction
so you'll have to figure out where the polse are on the motor magnets and
disk drive magnets and orient them accordingly.

> Is it possible to strap rare earth magnets on the motor casing to
> boost the strength of the motor's magnet?

I have a feeling this is against the rules.

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Relevant Pages

  • Re: remagnetising old magnets
    ... >appears to be just a high strength magnet.(This is used before each ... >race by the top racers) What I want is a cheaper alternative, ... >and I think this effects the magnets. ... I cannot stop the heat but if I ...
    (sci.electronics.repair)
  • Re: remagnetising old magnets
    ... >>appears to be just a high strength magnet.(This is used before each ... >>and I think this effects the magnets. ... For instance, once a motor has started, ...
    (sci.electronics.repair)
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