1. WARNING: Current profiles were tested on the Cura 3.5.1 and may not work on the previous versions as there are new config files introduced.
    • WARNING: Current profiles were tested on the Cura 3.5.1 and may not work on the previous versions as there are new config files introduced.

    • The following guide will help you import and activate custom profiles tweaked by Josef Prusa for your Original Prusa i3 printer.

    • This guide is valid both for Microsoft Windows and Apple macOS. There are some small differences in the setup, pay attention to the instructions ;)

    • Important: latest profiles include PLA, ABS and PETG. Other materials are being tested.

    • Original Prusa i3 MK2/S and MK2.5 settings: mk2s_mk25_cura_profiles

    • Original Prusa i3 MK3 settings: mk3_cura_profiles

    • Download the package for your printer and unzip it.

  2. The package includes several subfolders, which must be imported (or copied) into the Cura:
    • The package includes several subfolders, which must be imported (or copied) into the Cura:

    • Folder 01_Cura_printer_definitons includes profiles for the printers with dimensions, speeds and other parameters.

    • Folder 02_Cura_printer_extruders additional parameters for the printer, specifically for the extruder properties (new in Cura 3.5.1).

    • Folder 03_Cura_platforms includes platforms (heatbeds), which are just for the visual effect, though it is good to know, where your object will be printed on the heatbed.

    • Folder 04_Cura_layerheight_profiles includes settings for various layer heights (print quality).

    • Folder 05_Cura_Prusa_materials includes materials, which should be imported because default Cura material values differ from what is recommended for Prusa filaments.

    • File Readme.txt summarises changes to this package. No need to use it, unless you are curious ;)

    • By default Cura list of printers does not include Original Prusa i3 models. Let's fix it ;) First, save your work and close the Cura software.

    • Open the unzipped package and go to the folder: 01_Cura_printer_definitions

    • MS Windows: in a second window head to C:\Program Files\Ultimaker Cura 3.5\resources\definitions

    • Apple macOS: in a second window head to /Users/YOURUSERNAME/Library/Application Support/cura/3.5/definitions

    • On Mac open the Finder, press "Command+Shift+G" and enter "~/Library" (without quotes)

    • The path can slightly differ, for example, if you have a different version of Cura installed. Also on macOS the "Library" folder is hidden.

    • Copy the file(s) "...def.json" from the package to the Cura folder.

    • Open the unzipped package and go to the folder: 02_Cura_printer_extruders

    • MS Windows: in a second window head to C:\Program Files\Ultimaker Cura 3.5\resources\extruders

    • Apple macOS: in a second window head to /Users/YOURUSERNAME/Library/Application Support/cura/3.5/extruders

    • The path can slightly differ, for example, if you have a different version of Cura installed. Also on macOS this folder is hidden.

    • Copy the file(s) "...def.json" from the package to the Cura folder.

    • In the unzipped package open the folder: 03_Cura_platforms

    • MS Windows: in a second window head to C:\Program Files\Ultimaker Cura 3.5\resources\meshes

    • Apple macOS: right-click on the Cura icon, from the context menu select "Show package contents", then open folders in following sequence Contents->Resources->resources->meshes

    • The path can slightly differ, for example, if you have a different version of Cura installed.

    • Copy the file(s) "...platform.stl" from the package to the Cura folder.

    • From now on the steps are the same both for MS Windows and Apple macOS.

    • Now, open the Cura software

    • In case you run the software for the first time, you will be asked to Add a printer, in the list click on Other and select yours.

    • Use only profiles named "Original Prusa i3...", those are developed and tested by our company. If the printer name is missing the "Original" in its name, then it is from different manufacturer.

    • In case you are already working with Cura, go to Settings -> Printer -> Add printer and select yours.

    • Cura allows you to add one printer at a time. If you want to add more printers repeat this step.

    • Go to Settings -> Profile -> Manage Profiles

    • Click on the Profiles and Import.

    • Find the profiles on your drive (folder 04_Cura_layerheight_profiles), select one and open it. Unfortunately, Cura doesn't support multiple profiles import at once.

    • Your new profile will appear under the Custom profiles. You can also click on Activate to select it or do it later on the main screen from a drop-down menu by simply selecting the profile.

    • Repeat this step until you import all the profiles you wanted.

    • DON'T CLOSE this window yet, we will use it in the next step.

    • Click on the Materials and Import.

    • Find the profiles on your drive (folder 05_Cura_Prusa_materials), select one and open it. Unfortunately, Cura doesn't support multiple profiles import at once.

    • Your new material will appear in the list named as Prusa (e.g. Prusa PLA). You can also click on Activate to select it or do it later on the main screen from a drop-down menu by simply selecting the profile.

    • Repeat this step until you import all the materials you wanted.

    • Before you slice and print, lets make a final check:

    • Your printer is selected (e.g. Original Prusa i3 MK2/S/MK2.5).

    • The desired material is used (e.g. Prusa PLA)

    • Correct custom profile is applied (e.g. MK2 0.2 Normal).

    • That is all! Enjoy your printer and happy printing ;)

    • You can discuss your experience and print results on Prusa Research forum.

Finish Line

99 other people completed this guide.

Jakub Dolezal

Member since: 02/20/2017

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35 Comments

As usually Jakub, you did an amazing job! Works like a charm!

Charlie Bowen - Reply

Hi Charlie, thanks for the appreciation, it took some time to reverse engineer all the paths and tune the proper settings.

Jakub Dolezal -

Thanks for this!!!

Dan Eils - Reply

Hi Dan, you are welcome! Don't forget to share your prints on our forum ;)

Jakub Dolezal -

Lineal Advance don’t work in Cura? because the MK3 infill speed is 100mm/s, not 200mm/s.

And if don’t has LA and 200mm/s why the higher layer in the mk3 is 0.2mm and not 0.3mm?

Felipe - Reply

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