Re: Motor Speed Control (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Wed, 12 Sep 2007 07:16:32 -0600
From: Gomez Addams <gomezaddams@xxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: Motor Speed Control (fwd)


On Sep 10, 2007, at 8:42 PM, Tesla list wrote:

>
> ---------- Forwarded message ----------
> Date: Mon, 10 Sep 2007 12:51:11 -0500
> From: Crispy <crispy@xxxxxxxxxxx>
> To: Tesla list <tesla@xxxxxxxxxx>
> Subject: Re: Motor Speed Control (fwd)
>
> Thanks for the replies.  That router speed control looks  
> interesting ...
> how does it work?  I'm sure it's not a variable transformer, but if  
> it's
> solid state, how is it better than a normal lamp dimmer?

Voltage and current ratings of components.

>
> Thanks,
> Chris
>
> On Mon, 2007-09-10 at 07:58 -0600, Tesla list wrote:
>> ---------- Forwarded message ----------
>> Date: Mon, 10 Sep 2007 08:44:16 -0400
>> From: Daniel Kline <daniel_kline@xxxxxxxxxxx>
>> To: Tesla list <tesla@xxxxxxxxxx>
>> Subject: Re: Motor Speed Control (fwd)
>>
>>
>>
>> Tesla list wrote:
>>> ---------- Forwarded message ----------
>>> Date: Sun, 09 Sep 2007 01:29:55 -0500
>>> From: Crispy <crispy@xxxxxxxxxxx>
>>> To: tesla@xxxxxxxxxx
>>> Subject: Motor Speed Control
>>>
>>> Hello,
>>>
>>> I'm working on my ARSG, and I'm wondering what kinds of things  
>>> will work
>>> as speed control for a motor.  I decided that I'm going to go  
>>> with an
>>> angle grinder motor, if that makes any difference.  A variable
>>> transformer would be best, but they all seem to be expensive.  The
>>> cheapest 5amp variac I can find is on ebay for $50.  I've heard  
>>> mixed
>>> opinions about using lamp dimmers as speed controls, and I'm  
>>> wondering
>>> if there's any kind of consensus here about that.  Would it be  
>>> better to
>>> use something like http://home.cogeco.ca/~rpaisley4/ 
>>> x1200WControl.html
>>> instead of a lamp dimmer?  Or do I really need a variac?  If so,  
>>> does
>>> anyone know of a cheap source for variacs?
>>
>> I would suggest a router speed control, such as
>> http://www.harborfreight.com/cpi/ctaf/displayitem.taf? 
>> Itemnumber=43060
>>
>> Hope this helps,
>> Dan K.
>>
>>
>>
>
>
>

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