@TheRiflesSpiral, Interesting, my thought on using the Raspberry Pi was being able to use a RESTful API with a short USB cable mounted next to the arduino and controller board. I had experimented earlier with Chillipeppr after reading the forum post on Maslow and Universal G-code Sender. Update for Bar , but sadly never got to far.
I now use the Rasbperry Pi to buffer G code to my recently acquired 3D printer with Octoprint over the network, and it runs without a hitch.
Has anyone else tried running with Universal G-code sender or Chillippr workspaces?