Homebrew PCBs

Markus Zingg wrote:
> Adam,
> 
> What about your spray etcher? Ok, kind of off topic compared to an etch 
> "tank" in the strict sense, but I wonder
> if the spray etcher you built does deliver uniform results?
> 
> Markus
> 

My spray etcher works great, and it gets used all the time. The reason I 
was interested in more reliable bubble etching was part of another 
project to see if its possible to fabricate a compact and complete PTH 
PCB station for fabricating 150x150mm boards. If it is possible to get 
cost and labour down to a reasonable level then I would look at 
marketing such PCB prototyping stations.

I know there is a lot of R+D work to get there, even after my years of 
tinkering around. If its not economically viable or there is no market 
then I'd end up with a smaller PTH PCB station to replace my current 
setup which takes up lots of room.