Maybe try using a small aquarium air pump to make bubbles. Something like
this...

http://www.petguys.com/-015561108020.html

-- Mark

> -----Original Message-----
> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu]On
> Behalf Of microsoftwarecontrol
> Sent: Tuesday, May 31, 2005 12:43 PM
> To: Microcontroller discussion list - Public.
> Subject: Re: [EE] pcb eching tank. I find a perfect one
>
>
> it is for child's milk bottle.
> It is designed as heating water, then
> water heating bottle.
>
> I only make small pcb, <100mm long.
>
> air bubbling? I will try and need
> to find a air fan. what kind fan
> will do?
>
>
>
>
>
>
>
> ----- Original Message -----
> From: "Alan B. Pearce" <A.B.Pearce@rl.ac.uk>
> To: "Microcontroller discussion list - Public." <piclist@mit.edu>
> Sent: Tuesday, May 31, 2005 11:17 AM
> Subject: Re: [EE] pcb eching tank. I find a perfect one
>
>
> > >have a look what I find, from garage:
> > >a bottle heater, 300W and 50 to 110C temperature setting.
> > >full plastic and heating surface is taflon
> > >
> > >http://www.webjb.org/pub/img/05133/000_0964.JPG
> >
> > Hmm, what diameter is it? I'm just wondering what size bottle it was
> > designed to heat. Unless making very small PCBs all the time, I
> suspect it
> > would be a bit small for many things.
> >
> >
> > >next thing is how to make fluid mxing.
> > >I think over and over, made a conclusion:
> > >mechanical shaking is the easiest way.
> > >I need to build a shaking table, that all.
> >
> > Put some plastic hose in the bottom and bubble air through it? May be
> easier
> > than having a shaking table.
> >
> > --
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