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Message

Re: Bernoulli sprayer

2012-12-17 by designer_craig

SS = stainless steel.

The Splash tank is about as agressive as a good spray tank and has more action than a bubbler.  Wtih a spray thank you could do both sides at once.  To do the same on a splash tank you need two dashers, one on each side of the board.

Craig

--- In Homebrew_PCBs@yahoogroups.com, "Jeff Heiss" <jeff.heiss@...> wrote:
>
> 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
> 
> 
> 
> 
> 
> [Non-text portions of this message have been removed]
>

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