Inkjet head (fail)

I was experimenting with piezo inkjets. The first attempt was a no go (frame was not watertight).

Please leave a comment if you have got something working using 3D printed parts.

I know about these attempts that seemed to work:
http://reprap.org/wiki/Reprappable-inkjet
or
http://reprap.org/wiki/Scratchbuilt_Piezo_Printhead

Right now I have to make my part watertight before ditching this idea.