Re: Motor Speed Control (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- 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.