Homebrew PCBs

I have had thoughts of doing something similar in the past.
You might want to take a look at this site.

http://www.slac.stanford.edu/exp/mps/FCS/FCS_drop.htm

I think it is about the simplest design I have seen for a 
droplet ejector that might be feasible for a serious hobbyist 
to build. 

--- In Homebrew_PCBs@yahoogroups.com, Slavko Kocjancic <eslavko@...> wrote:
>
> Hello...
> 
> I'm start journey to make inkjet head for printing pcb's. As far I know 
> all direct print inkjet have problem's with ink and head itself is 
> problematic. So I was just trying to make one pixel piezo head capable 
> to jet etch resist for making traces and after that to print real solder 
> resist mask.
> 
> As far I know the head itself is made from 3 components. The chamber 
> with variable volume, the input port capilar and the nozle.
> 
> I was try to make capilar just with zigzag milling the pcb just 0.1mm 
> deep and after that gluing transparent foil ontop. The capilar is 15cm 
> long and seems that is ok. The chamber is made inside same piece just 
> the depth is set to 0.5mm and is covered with piezo buzzer glued on top.
> For the nozzle I just try if I can do that small hole and I can. The 
> hole of 0.08mm can be done without some special tool.
> 
> See photos.
> 
> Slavko.
> 
> 
> [Non-text portions of this message have been removed]
>