OpenDrop – Electro-wetting technology to control small droplets of liquids (gaudishop.ch)

Basic bundle: 1205 euro.

I'd recommend the video for anyone as confused as I was about what this looks like in application: https://www.youtube.com/watch?v=ncfZWqPm7-4

This is open source under GPL3 [1]. It's pretty cool that the infrastructure to design and build basic machines like this is more and more easily available. As far as I can see all the designs can be viewed/edited via open source tools.

[1] https://github.com/GaudiLabs/OpenDrop