With the auto mode and all the work on hard and software until now, I have finished the ink cycle so that the ink can be pumped around over and over again.

So, what's next to do?

- The 1 1/4 tubes are made of rusting steel and need to be replaced by another material, likely stainless steel with caps made of plastic or also stainless steel.

- I need to build/buy a more portable driver for the piezo nozzle + LED that can split the ink stream into droplets and make them visible under a strobe light. Everything should be grounded and waterproofed.

- Designing a 3D printed case for the printhead.

This will likely take some time and I will keep you updated.