Drivers and manuals


  • Version 1.7.6 Most recent (March 8, 2017)
    • Windows version 186MB
    • Mac OSX version 260MB
    • – Smooth variable layer height with Slic3r PE 1.33.8 (select object in plater and use Layer Editing feature in the top menu)
    • – “Report an Issue” added to help menu. Please help us improve it 🙂
    • – Better, faster and easier to remove supports!
    • – Better support for Chinese, Korean, Japanese and Taiwanese Windows.
    • – New “slicing info” box with the filament weight and cost after exporting G-code.
    • – Anti-aliasing and retina support on MAC.
    • – MAC: FirmwareUpdater V2.1b with OSX Sierra support.
    • Linux instructions
    • – See GitHub releases for Linux AppImage builds.
    • – Use Slic3r config bundle and sample objects from Mac Package.
  • Older versions


  • Original Prusa i3 MK2S
  • Original Prusa i3 MK2
    • English 3D Printing Handbook 6MB
    • – Version 1.05 (PEI surface preparation changes, calibration flow tweaks, when is needed to redo the calibration, how to change filament during a print, dental floss for object removing, light and full factory reset, firmware update…)
    • – October 23, 2016
  • Original Prusa i3 “MK1” 1.75mm

    Manual is suitable even for 3mm version except material temperatures and images.



Firmware 3.0.10 (February 18, 2017)

MK2 only for now.
Changes in 3.0.10:

  • Loose pulleys test added to the self test
  • Statistics fixed
  • PID tuning fixed and saving parameters to EEPROM enabled
  • Stop print function fixed
  • Load filament function improved
  • Stack guard added
  • XYZ calibration updated
  • Factory reset has new menu
  • Missing “Move Z” option fixed

Full detailed release log on Github

Changes in 3.0.9:

  • Firmware Updater V2 is included with this release. RAMBo will automatically reset before and after flashing. Flashing is more reliable. It will be updated in 1.7.5 Drivers package.
  • More descriptive user messages during the calibration flow
  • Self test now include both nozzle and print cooling fan
  • Temperature safety checks are now added in preheat process. This was a bug inherited from original MarlinFW
  • Better Octoprint compatibility

Firmware 3.0.3 (June 12, 2016) (THE LATEST ONE FOR MK1)

Changes in 3.0.3:

  • G28 won’t run bed levelling when called with X or Y parameters
  • Factory reset will clear the Live adjust Z settings (helpful for upgraded printers)

Changes in 3.0.2:

  • Better homing
  • Homing without calibration
  • Live adjust Z fix
  • Fixed Z motor current