I just ordered a Raspberry PI I am going to set it up to run Octoprint. I will not need a computer powerfully enough to slice and create 3D objects at my printer any more.
OctoPi - a OctoPrint ready distro for the Raspberry Pi - Hackalizer
It can even run a web cam so you can see the printing progress.
This is my first project with Raspberry PI so it should be fun.