Homebrew PCBs

Yes these are exactly the machines I had in mind. The Bungard Jet 34 
is the archetype of these rotary spray etchers, but of course 
detailed pictures are nowhere to be found, they don't want people to 
imitate their machines, do they...

Regards
Martin




--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan 
<stefan_trethan@g...> wrote:
> 
> No, no wands here.
> (didn't even know the arm in the dishwasher is a wand, thought a 
wand is 
> only
> used by wizards ;-) )
> 
> a rotating tube, and centrifugal force.
> like
> <http://www.megauk.com/cgi-bin/mega/lp.pl?
page=http://www.megauk.com/spray_etching_machines.php>
> <http://www.computronics.com.au/rota-spray/>
> 
> ST
> 
> 
> > Hi MArtin,
> >
> > I'm not sure I follow your question.  It seems that the rotating 
wand
> > would be like a dishwasher spray wand ?  it would have many 
different
> > holes and they would be angled so the more pressure, the faster 
it
> > would spin ?
> >
> > When you mentioned spinning, the first thing that came to my mind
> > would be to have a shaft that came out of the enclosure
> > and that would have a motor on it.
> >
> > But that would mean a circular spray pattern if the want rotates 
in a
> > circle.
> >
> > dunno what your project looks like.
> >
> > But, I would be careful about having ANYTHING under pressure 
that was
> > NOT in a secondary containment vessle of some sort.  If a 
fitting or
> > tube were to leak, there should be some means of containing the 
spray
> > as well as the fluid.
> >
> > I would not like any Xenomorph blood on my carpet.
> >
> > Dave