Homebrew PCBs

Marty,

I built a small spray etcher many years ago using a "Little Giant" 
pump and a quartz heater for use with ferric chloride. Now I use this 
same unit to develop dry film photoresist. I used some HCL to clean 
out the ferric chloride stains and it works great for dry film. This 
etcher was modeled after the Kepro units but is just a bit larger so 
it can handle a 18" x 24" panel. My main etcher now is an old Chemcut 
315 which has oscillating spray bars and uses ferric chloride. 

I use Micromat drilling machines, one for drilling and one dedicated 
for routing. For prototypes I just use a scope drill. We soldermask 
all of our boards mainly to keep the copper from tarnishing. I just 
make boards for my own products and don't operate as a merchant shop 
any longer. 

Tom

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Marty wrote:

I'm curious as to whether anyone has built their own home spray 
etcher (a
small bench-top machine)? It would be fairly easy (albeit the time and
components required).



Cheers to you too! I'm guessing you're in the U.K. I'll be visiting 
the
U.K. in about two months. Although I've made several business trips 
over
there, this will be my first vacation (holiday). I'm looking forward 
to it!



Marty