While you can get a great deal on a Raspberry Pi kit with a Micro SD card included, if you don’t buy the kit you will need to get the card. You can also save 3D image files in STL format for slicing on the OctoPi or presliced GCODE files via wireless transfer. The Raspberry Pi uses a micro SD card to store the operating system as well as the Octoprint software. If you do want to get the bundle kit, you can grab an individual Raspberry Pi from Amazon.
Please note that some older versions do not include built in WiFi, so you will need to get a USB WiFi dongle or an Ethernet cable to connect the Pi to your network. If you have issues with connecting to the printer, make sure you have the Serial Port and baudrate correct (in Cura "AUTO" works just fine for me, but in Simplif圓D it always tries to connect via my Bluetooth "port" by default, so I have to remember to change it to USB).I recommend using a Raspberry Pi 3B+ but any version of the Raspberry Pi other than the Zero should work just fine. To minimize these issues, use a nice, short USB cord (no more than 6ft, ideally—USB protocols do a lot of error correcting and the longer the cable is the more error correcting that needs to happen) and connect it directly to your computer, instead of through a USB hub. You may encounter some issues with USB printing, like mid-print stops or glitches that cause your printer to behave weirdly or print incorrectly (although I think most people have no problems with it, myself included). If you are using Cura, you will have to go to:įind "GCode flavor" in the Machine settings window (it's on the bottom-left for me)Īlternatively, you can use other slicers (I use and rather like Simplif圓D, although it's not free) which will enable it more or less automatically. You will just need to pass the UM2 "RepRap Flavor" G-Code, instead of "UltiGCode".
While print-over-USB for the Ultimaker 2 is currently not "officially supported" by Ultimaker (the company), because some users have experienced mid-print errors caused by slow or faulty USB connections, the Ultimaker 2 (and Cura) can do it.
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