Homebrew PCBs

I like the splash etcher drawing.  What does SS stand for in the SS paddle?
How would you compare the performance of a splash ether to other etch tanks
like wave, bubble, or spray?  

 

Jeff

 

  _____  

From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com]
On Behalf Of designer_craig
Sent: Sunday, December 16, 2012 1:23 PM
To: Homebrew_PCBs@yahoogroups.com
Subject: [Homebrew_PCBs] Re: Bernoulli sprayer

 

  

Jeff,
I built the tank back in 1975 and used it off and on for many years. Back in
2000 I was down sizing due to an upcoming move and got rid of it with a lot
of other stuff. I could find no photos but I did draw up a sketch a while
back. Go to the files section of the forum and look under Craigs-files. I
used this etcher with annonium persulfate becasue I had an easy supply of
the stuff. The company I worked for had a captive PCB shop and used the AP
as part of the process. I had an imersion heater to get it up to the 140F
etching temp. Fresh hot etchant would do a board is 30 to 60 seconds.

Don' know if I would use it with Feric Chloride becasue of the mess that the
stuff makes, stains everyting it touches. CuCL2 should work fine as well but
out side because of the HCL fumes. AP is so clean to work with.

There are photos of my spin coater and pcb drill in the photo section under
Craigs photos

Craig

--- In Homebrew_PCBs@yahoogroups.com
<mailto:Homebrew_PCBs%40yahoogroups.com> , "Jeff Heiss" <jeff.heiss@...>
wrote:
>
> Any pictures of your tank available?
> 
> 
> 
> Jeff





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