I've continued to hack away at the arduino code for the z-axis.
I have had more problems getting it to work than I expected !! It took a lot of experimenting to know what the system really needed.

I now have code that is working Rock Solid on all of the test models built in to the Peachy software!
It does not currently work for gcode imported into the software yet.
This appears to be a matter of getting the starting sequence timed properly. The Peachy printer will not start a print job until it gets the right number of drips and the right delay timings right at the start of the print. So it's just a matter of tweaking this pieces.

More updates coming :-)
...believe me! Once I get this working, you won't be able to shut me up !!!