Homebrew PCBs

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