Prusa i3 3D printer

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Prusa i3 3D printer
Owner/Loaner PS:One
Make/Model Prusa Mendel 13
Arrival Date 5/2016
Usability no
Contact CNC Area Host
Where CNC Area, upstairs
Authorization Needed yes
Hackable no
Estimated Value $500
Host Area CNC

Prusa i3 3D printer Area: CNC


4/24/2017 - Printer bed connector is failing, could be failing print bed causing excess current draw; install solid state relay and if problem persist replace with silicone heater bed. Uneven extrusion or slippage, possible problem with the hobbed bolt; brass and is going bad; Should be replaced with stainless steel one. (ajasani)

11/27/16 - Tested printer with random yellow PLA, resulting in poor print quality. Suspect that PLA may be bad, as it snaps instead of bending. Going to test with different PLA. --Skynaya (talk) 11:36, 28 November 2016 (CST)

3/14/2017 - Cura intermittently detects the printer. Use the Simplify3D profile below for the Prusa using Com 7.


Ask CNC Area Host. No regularly scheduled authorizations. Authorization sessions can be arranged for 3 or more members as required. If you want to schedule an authorization session, find 2 or more other people and email the CNC Area Host for referral to an authorizer.


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.


Please add information to this section if you discover some useful tips and tricks.

  • Use the manual controls to preheat the nozzle and bed for your material type. Then Cura may detect the printer.



SD Card

Should accept any SD card. Use the Replicator Dual SD card or bring your own.

Usable Print Area

200mm x 200mm x 180mm (Please verify - --Skynaya (talk) 11:36, 28 November 2016 (CST))

Nozzle size

  • Presumed 0.35mm nozzle, verification would be appreciated --Skynaya (talk) 11:36, 28 November 2016 (CST)

Host Software

Users of Linux, Windows, OSX will need to install the following software:

Suggested Settings

This printer has not seen much testing, and appropriate settings have yet to be determined.

Prusa Drivers and Settings Files:

See forum post for some settings:

Prusa Simplify3D Settings:



The extruder for this machine accepts 1.75mm filament.

MicroCenter (online and in store)


Find Something to Print

Thingiverse is a great place to find printable 3D models that other people have designed, and to publish your own.

Designing 3D Models

Page in progress to describe 3D modeling.

List of Currently Certified Users

qualified member trained by
Derek Bever Hours of shouting at 3D printers
Grant Wagner Ashish Jasani
Zack Sasnow Ashish Jasani
Sam Dreyer Sky Nova
Ray Doeksen Sky Nova
Anastasiia Holubova Sky Nova