I've thought about picking up a server rack for a while, but this past week I was looking at ways to better organize my stuff and had the idea to put the R1s in a server rack and get a few drawers to put everything in a smaller XY space than the desk I was previously using for the printers. I was thinking I would have to do a good bit more work to get them to rack, but they fit PERFECTLY with about $6 of nuts and bolts (each) from Home Depot, a bit of dremmeling, and some rails that came with the server rack. Right now I have a Delta fan on the bottom of each of the printers, but I am thinking about replacing them with a couple blowers and removing the bottom cover for easier access. They take up about 12U each, and as one of the pictures shows, I can easily tilt them back to access their bottom. Outside of the printer, I picked up 3 servers from the guy I got the rack from for $100. I offloaded 1 for $60, so I ended up with a Dell R210 and a 2950 for $20 each. Not bad if you ask me. I also bought a 4U case that I swapped my desktop into (not pictured) and a 2U drawer. The drawer works well, but I thought it was going to be deeper for some reason, so I'm thinking I'm going to go get some cheap 19" bins from Walmart and figure out how to mount them in the back for now. For the bottom 10/11U, I'm planning on making/printing something to rack mount my MPCNC that I never got around to finishing. I figure I can make a few boards that I can clamp to the bottom of the rack and swap them depending on what I'm using the MPCNC for. What did you guys think? EDIT (23JAN2017): Added picture of new fan layout/RasPi for Octoprint.