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'[EE] Where to find quality motors and controlle'
2009\04\12@122649 by Michael Algernon

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I am not sure if this is an EE topic.
I have read that high end newer appliances ( washers and dryers  
mostly ) have motors and controllers that are quite useful for hackers/
experimenters.  I am wondering what brands of appliances are using the  
higher quality motors and where one might find such items in a used  
condition.  I don't mind repairing them.
MA

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2009\04\12@162123 by Tony Smith

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> I am not sure if this is an EE topic.
> I have read that high end newer appliances ( washers and dryers
> mostly ) have motors and controllers that are quite useful for hackers/
> experimenters.  I am wondering what brands of appliances are using the
> higher quality motors and where one might find such items in a used
> condition.  I don't mind repairing them.


Fairly common these days, not necessarily high end or high quality.

Google 'direct drive washing machine'.  Adding the brand name 'Fisher and
Paykel' may help, not that you'll find many of those in your neck of the
woods.  Not a belt or gearbox in sight.

The other type are VFDs (variable frequency drive) normally only found on
large 3-phase machinery.  The motors are 3-phase and have a phase converter
(& a belt).  NEC & others make these.

I can't say I've seen any dryers with fancy motors, dryers tend not to have
much need for speed control  They're usually small brushed or induction
ones.  The newer the machine the smaller the motor.  Open cage too.  

Tony



2009\04\12@163437 by Tony Smith

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> > I am not sure if this is an EE topic.
> > I have read that high end newer appliances ( washers and dryers
> > mostly ) have motors and controllers that are quite useful for hackers/
> > experimenters.  I am wondering what brands of appliances are using the
> > higher quality motors and where one might find such items in a used
> > condition.  I don't mind repairing them.
>
>
> Fairly common these days, not necessarily high end or high quality.
>
> Google 'direct drive washing machine'.  Adding the brand name 'Fisher and
> Paykel' may help, not that you'll find many of those in your neck of the
> woods.  Not a belt or gearbox in sight.
>
> The other type are VFDs (variable frequency drive) normally only found on
> large 3-phase machinery.  The motors are 3-phase and have a phase
converter
> (& a belt).  NEC & others make these.
>
> I can't say I've seen any dryers with fancy motors, dryers tend not to
have
> much need for speed control  They're usually small brushed or induction
> ones.  The newer the machine the smaller the motor.  Open cage too.


I should just add that both types are VFDs / 3-phase, the difference being
the form factor.  The direct drive types aren't quite as readily re-usable
as the others.

The phase converters are your typical 'black box' these days as well.

Tony


2009\04\13@160530 by Alan B. Pearce

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>Google 'direct drive washing machine'.  Adding the brand name
>'Fisher and Paykel' may help, not that you'll find many of those
>in your neck of the woods.  Not a belt or gearbox in sight.

I believe that LG have been making similar items in the UK during the last
couple of years.

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