I also upgrade it to an Grid 2, but still not as good as i hope.
so I relly miss my old reprap, no I have paint it and are printing new part for it so I hope it's will be beautiful! I like Octoprint for raspberry pi and Repetier-host.
I got from Prusa mendel i2, printed parts from work, to Prusa AIR 2.
prusa mendel, looks like shit, and work that way.
here is some pic on the project going on:
6 houers later 95 % done