Prusa i3 MK2S .202

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Prusa i3 MK2S .202
Owner/Loaner PS:One
Make/Model Prusa i3 MK2S
Arrival Date 12/2017
Usability yes
Contact CNC Area Host
Where CNC Area, downstairs
Authorization Needed yes
Hackable no
Estimated Value $600
Host Area CNC

Prusa i3 MK2S .202 Area: CNC


A very nice for 2018 filament-based (FDM) 3D printer. Uses 1.75 mm filament. See for details. Capable of printing many different kinds of filament. Ships with 0.4 mm nozzles.


07/23/2019 - Printer making PINDA puddles before prints. Prints are not adhering to bed. This printer is not connected to Octoprint (see Octoprint wiki page). Works via SD card.

2/23/2018 - There are two of these mostly identical printers: one is connected to Octoprint, and has a broken SD card reader, but that Octoprint server is somewhat dorked up and would not slice for me, while the other Prusa i3 Mk2S is NOT connected to Octoprint, but has a working SD card reader. You can print, one or the other of them is working well enough that I'd say "it" is "working."

12/10/2017 - Still needs to be calibrated. Still Need to Configure Octoprint. Can print via SD Card.


Prusa i3 OctoPrint Server

The Prusa i3 now uses OctoPrint as its host device. You can now send jobs to the printer via any computer in the space, even your personal device.

The OctoPrint server for the Prusa i3 can be reached at


  • When connecting to the OctoPrint server, you may first need to select "Connect" under the left side Connection tab if the printer has been turned off.
    • All settings to connect are retained and should not be modified.
  • Once the printer is connected, you can begin warming it up with the Temperature tab.
    • Enter a temperature in Celsius and click "Set"
  • You can control the printer's movements and extrusion using the "Control" tab.
  • To get started printing, upload an STL using the left side "Files" tab.
  • Find the STL you uploaded and click the "Slice" button, it looks like a magic wand.
  • From here, you can select what slicer engine you'd like to use and what settings you'd like to print with.
    • Cura is the default slicing engine.
    • Select one of the preset slicing profiles, and then manually set your preferred temperatures and speeds using the Basic and Advanced tabs.
  • Now locate the newly generated GCO file (G-Code) in the left side Files tab. You can now click "Load and Print" to print your object.
  • It is preferred if you delete your files from the OctoPrint server when you are done. You can download your GCO file for future printing if you would like to retain the specific sliced project.

This is only a high level overview of how to use OctoPrint. If you are already authorized but have not used OctoPrint, feel free to attend future authorization sessions. OctoPrint will accept g-code from the most popular slicers such as Cura, Slic3r, Repetier-Host, and Simplify3D.


Refer to our 3D Print Troubleshooting page.