Homebrew PCBs

Dave Kush is using one!!! www.buildyouridea.com


--- In Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
<stefan_trethan@g...> wrote:
>
> On Fri, 23 Dec 2005 15:34:50 +0100, lcdpublishing  
> <lcdpublishing@y...> wrote:
> 
> >
> >
> > There is a spinning magnent under the top surface of the machine.
> >
> > You place a beaker of fluid on top of that surface and turn on the
> >
> > machine and the fluid spins like crazy - very good fluid agitation
> >
> > without any mechanical connections or hoses etc.  The things look
> >
> > neat as hell, but I have not idea what they are called or how
> >
> > exactly they work.
> 
> 
> This is called a magnetic stirrer. You drop a magnet, often coated in  
> teflon, in the glass and a rotating magnetic field spins it. Often
those  
> machines are combined with a hotplate.
> 
> 
> Your expected drawbacks are probably why this isn't used very often
for  
> etching.
> 
> 
> ST
>