I agree with Stefan that building a rotary kind of spray etcher is
most likely a lot easier. I do have one that I boght a while ago. I
first was happy, but over time it turned out that it does not create
reliable reproduceable results. That's however not due to it's
principle of operation but more because of some bad ideas on behalf of
the manufacturer.
I created a little homepage for you showing pictures of the
(depreciated) etcher I have and most importantly a little video of the
MUCH better Bungard spray etchers which should give you some good
ideas on how to build your own.
www.myhome.ch/mzingg/pcbstuff
Markus
>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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