Homebrew PCBs

why not build the rotrary spray etcher?
it sed only a plastic pipe, with holes for spraying on the upper part.
high speed driven by a motor on top of the tank.
we discussed this here a time ago...

st


On Tue, 30 Sep 2003 15:00:39 +1000, Adam Seychell 
<adam_seychell@...> wrote:

> Anyone here every built a spray etcher ?
> I'm looking at building a spray etcher on the cheap, but I cannot find a 
> suitable pump. Pressure requirements are fairly high for sprays nozzles 
> to work effectively. The pump must be capable of at least 10 meter head 
> (1 bar), but all low cost fountain pumps are rated no more than 4 meters 
> head. Getting hold of a pump is the killer. Example, the Iwaki MD-70RZ 
> has 16 meter head but sells for AU$500. The etchant I'm using won't 
> effect stainless steel.
>
>
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