2 RPis running Octoprint for the 3D printers 1 RPi connected to the laser cutter which I'm currently fixing 1 RPi that I take with me and connect to from my phone through ssh (moving to mosh and a Bluetooth terminal when I get the chance) 1 RPi that I leave in the lab so people can play with it with numpy/scipy/octave 1 RPi that I'm setting up with something like Jellyfin for my home media server