Firmware changelog

v3.7.1 MK3 (13 mai 2019)

  • Rambo board overheating fix
  • Bed preheat error fix
  • SPI flash error is not blocking the printer anymore
  • IR-sensor self-test fail message added
  • Menu items text overflowing fix
  • Linearity correction not saved to EEPROM fix

v3.7.1 MK2.5S (13 mai 2019)

  • Watchdog enabled
  • Rambo board overheating fix
  • Bed preheat error fix
  • SPI flash error is not blocking the printer anymore
  • Menu items text overflowing fix
  • Linearity correction not saved to EEPROM fix

v3.7.1 MK2.5 (13 mai 2019)

  • Watchdog enabled
  • Rambo board overheating fix
  • Bed preheat error fix
  • SPI flash error is not blocking the printer anymore
  • IR-sensor self-test fail message added
  • Menu items text overflowing fix
  • Linearity correction not saved to EEPROM fix

v3.7.1 (1.0.5) MK3S/MK2.5S Multi Material 2S (13 mai 2019)

Printer firmware update (3.7.1)

  • Octoprint MMU load failed fix
  • Watchdog enabled for MK2.5 and MK2.5S
  • Rambo board overheating fix
  • Bed preheat error fix
  • SPI flash error is not blocking the printer anymore
  • Menu items text overflowing fix
  • Linearity correction not saved to EEPROM fix

MMU2S Unit firmware update (v1.0.5)

  • This fw version improves mmu2 unit function when used with MK3S and MK2.5S printers with IR sensor. Especially T-code filament loading phase reliability was improved. It is now possible to resume print after MMU load fail detected by printer also by MMU button.

v3.7.1 (1.0.5) MK3/MK2.5 Multi Material 2.0 (13 mai 2019)

Printer firmware update (3.7.1)

  • Octoprint MMU load failed fix
  • Watchdog enabled for MK2.5 and MK2.5S
  • Rambo board overheating fix
  • Bed preheat error fix
  • SPI flash error is not blocking the printer anymore
  • IR-sensor self-test fail message added
  • Menu items text overflowing fix
  • Linearity correction not saved to EEPROM fix

MMU2S Unit firmware update (v1.0.5)

  • This fw version improves mmu2 unit function when used with MK3S and MK2.5S printers with IR sensor. Especially T-code filament loading phase reliability was improved. It is now possible to resume print after MMU load fail detected by printer also by MMU button.

v3.7.1 MK3S (13 mai 2019)

  • Rambo board overheating fix
  • Bed preheat error fix
  • SPI flash error is not blocking the printer anymore
  • Menu items text overflowing fix
  • Linearity correction not saved to EEPROM fix

v3.7.0 MK3 (1 avril 2019)

  • 7x7 mesh bed levelling (set the density in Settings - Mesh bed leveling - Mesh)
  • The informative message during switching between normal and stealth modes
  • Improved behaviour when removing SD card
  • Autoload disabled in extruder info menu

v3.7.0 MK3S (1 avril 2019)

  • 7x7 mesh bed levelling (set the density in Settings - Mesh bed leveling - Mesh)
  • The informative message during switching between normal and stealth modes
  • Improved behaviour when removing SD card
  • Autoload disabled in sensor info menu

v3.7.0 MK2.5S (1 avril 2019)

  • 7x7 mesh bed levelling (set the density in Settings - Mesh bed leveling - Mesh)
  • The informative message during switching between normal and silent modes
  • Improved behaviour when removing SD card
  • Autoload disabled in sensor info menu

v3.7.0 MK2.5 (1 avril 2019)

  • 7x7 mesh bed levelling (set the density in Settings - Mesh bed leveling - Mesh)
  • The informative message during switching between normal and silent modes
  • Improved behaviour when removing SD card
  • Autoload disabled in extruder info menu

v3.7.0 (1.0.5) MK3/MK2.5 Multi Material 2.0 (1 avril 2019)

Printer firmware update (3.7.0)

  • 7x7 mesh bed levelling (set the density in Settings - Mesh bed leveling - Mesh)
  • Improved T-code load
  • Change filament fix
  • Eject filament contains ramming
  • The informative message during switching between normal and stealth modes
  • Improved behaviour when removing SD card
  • Autoload disabled in extruder info menu
  • Warning: We do not recommend using Octoprint with this version because of a known bug resulting in failed print after first load filament error.

MMU2S Unit firmware update (v1.0.5)

  • This fw version improves mmu2 unit function when used with MK3S and MK2.5S printers with IR sensor. Especially T-code filament loading phase reliability was improved. It is now possible to resume print after MMU load fail detected by printer also by MMU button.

v3.7.0 (1.0.5) MK3S/MK2.5S Multi Material 2S (1 avril 2019)

Printer firmware update (3.7.0)

  • 7x7 mesh bed levelling (set the density in Settings - Mesh bed leveling - Mesh)
  • Possibility to switch between normal and stealth mode (MK3S + MMU2S only)
  • Improved T-code load
  • Change filament fix
  • Eject filament contains ramming
  • The informative message during switching between normal and stealth modes
  • Improved behaviour when removing SD card
  • Autoload disabled in sensor info menu
  • Warning: We do not recommend using Octoprint with this version because of a known bug resulting in failed print after first load filament error.

MMU2S Unit firmware update (v1.0.5)

  • This fw version improves mmu2 unit function when used with MK3S and MK2.5S printers with IR sensor. Especially T-code filament loading phase reliability was improved. It is now possible to resume print after MMU load fail detected by printer also by MMU button.

v3.6.0 (1.0.5) MK3S/MK2.5S Multi Material 2S (1 mars 2019)

Printer firmware update (3.6.0)

  • Smarter load to nozzle/unload/eject function for multi material printers and single material version improved
  • Stop print during filament change fixed

MMU2S Unit firmware update (v1.0.5)

  • This fw version improves mmu2 unit function when used with MK3S and MK2.5S printers with IR sensor. Especially T-code filament loading phase reliability was improved. It is now possible to resume print after MMU load fail detected by printer also by MMU button.

v3.6.0 (1.0.5) MK3/MK2.5 Multi Material 2.0 (1 mars 2019)

Printer firmware update (3.6.0)

  • Smarter load to nozzle/unload/eject function for multi material printers and single material version improved
  • Stop print during filament change fixed

MMU2 Unit firmware update (v1.0.5)

  • This fw version improves mmu2 unit function when used with MK3S and MK2.5S printers with IR sensor. Especially T-code filament loading phase reliability was improved. It is now possible to resume print after MMU load fail detected by printer also by MMU button.

v3.6.0 MK2.5S (1 mars 2019)

  • Smarter load to nozzle/unload/eject function for multi material printers and single material version improved
  • Stop print during filament change fixed

v3.6.0 MK2.5 (1 mars 2019)

  • Smarter load to nozzle/unload/eject function for multi material printers and single material version improved
  • Stop print during filament change fixed

v3.6.0 MK3S (1 mars 2019)

  • Smarter load to nozzle/unload/eject function for multi material printers and single material version improved
  • Stop print during filament change fixed

v3.6.0 MK3 (1 mars 2019)

  • Smarter load to nozzle/unload/eject function for multi material printers and single material version improved
  • Stop print during filament change fixed

v3.5.2 MK3 (12 février 2019)

  • More quiet print fan operation
  • Heatbed regulation improved - reduced the PSU clicking noise
  • Improved heater temperature regulation
  • Spool join for multi-material prints
  • Smarter load/unload function
  • SD card menu is shown automatically when the card is inserted
  • Safer communication between MMU2 and printer
  • Crash detection for zero target temperature fixed

v3.5.2 MK2.5 (12 février 2019)

  • More quiet print fan operation
  • Improved heater temperature regulation
  • Spool join for multi-material prints
  • Smarter load/unload function
  • Mintemp for MK2.5 updated
  • SD card menu is shown automatically when the card is inserted
  • Safer communication between MMU2 and printer

v3.5.1 MK3 (19 décembre 2018)

  • Patch release
  • Button click fix
  • M220 speed factor
  • Z-levelling fix
  • Pause print -> stop print fix

v3.5.1 (1.0.3) MK3/MK2.5 Multi Material 2.0 (19 décembre 2018)

Printer firmware update (3.5.1)

  • Patch release
  • Button click fix
  • M220 speed factor
  • Z-levelling fix (MK3 only)
  • Pause print -> stop print fix

MMU2 Unit firmware update (v1.0.3)

  • Power panic support
  • Smarter operation
  • Faster Individual Filament Calibration

v3.5.0 (1.0.3) MK3/MK2.5 Multi Material 2.0 (18 décembre 2018)

MMU2 Unit firmware update (v1.0.3)

  • Power panic support
  • Smarter operation
  • Faster Individual Filament Calibration

v3.5.0 (v1.0.2) MK3/MK2.5 Multi Material 2.0 (22 novembre 2018)

  • All changes described in v3.0.5 description above
  • MMU2.0 related improvements:
    • Improved printing in single material mode (new Tx, Tc codes and T? fixed)
    • Load to nozzle added
    • Manage response improved: possibility to preheat nozzle
    • Fixed First layer calibration/Wizard
    • Filament sensor (dependency on optical sensor fixed)
    • T? menu changes feedrate fixed
    • Extruder stepper disabled during T-code execution (MK3 only)
    • Auto deplete menu improved
    • Filament change (M600): improved message synchronization

v3.5.0 MK2.5 (22 novembre 2018)

  • Faster filament loading
  • Pause print and Preheat error improved
  • Min. extrude temp. changed to 175 °C in all variants
  • Time remaining > 100 h screen fix
  • Improved Wizard for assembled printers
  • Filament change (M600): make space for opening idler
  • The French language added
  • Other general improvements

v3.5.0 MK3 (22 novembre 2018)

  • Faster filament loading
  • Pause print improved and Preheat error fix
  • Min. extrude temp. changed to 175 °C in all variants
  • Time remaining > 100 h screen fix
  • Improved Wizard for assembled printers
  • Filament change (M600): make space for opening idler
  • Bed power monitor
  • Standard G-codes for setting TMC currents
  • Crash detection -> stop print bug fixed
  • French language added
  • Other general improvements

v3.4.2 (V1.0.2) MK3/MK2.5 Multi Material 2.0 (20 octobre 2018)

This firmware version is specifically for users who use MK2.5 + MMU2 setup. If you are not using MMU2 or if you use MMU2 with MK3 printer it is not necessary to upgrade to this version.

  • MK2.5 + MMU2 setup loudness reduced - For corrent beahviour it is necessary to use MMU firmware 1.0.2 and higher when running MMU2 with MK2.5. Users who use MK3 printer do not need to upgrade their MMU2 firmware.
  • MK2.5 + MMU2 setup initialization - MK2.5 was unable to automatically detect MMU2 unit after turning on the printer. This has been fixed.

v3.4.1 (v1.0.1) MK3/MK2.5 Multi Material 2.0 (12 octobre 2018)

  • New MMU2 board firmware v1.0.1
  • Filament runout detection fixed
  • Stealth mode bug (indicated as slow Z-axis movements) fixed
  • Message "Filament sensor response is poor, disable it?" has been temporarily disabled - this feature tended to be too sensitive and unreliable. We are working on improved version of this feature.
  • Statistics during active print fixed
  • OctoPrint "Printer reset detected" warning issue fixed

v3.4.1 (0.9.0) MK3/MK2.5 Multi Material 2.0 (4 octobre 2018)

  • Filament runout detection fixed
  • Stealth mode bug (indicated as slow Z-axis movements) fixed
  • Message "Filament sensor response is poor, disable it?" has been temporarily disabled - this feature tended to be too sensitive and unreliable. We are working on improved version of this feature.
  • Statistics during active print fixed
  • OctoPrint "Printer reset detected" warning issue fixed

v3.4.1 MK2.5 (4 octobre 2018)

  • Filament runout detection fixed
  • Silent mode bug (indicated as slow Z-axis movements) fixed
  • Message "Filament sensor response is poor, disable it?" has been temporarily disabled - this feature tended to be too sensitive and unreliable. We are working on improved version of this feature.
  • Statistics during active print fixed
  • OctoPrint "Printer reset detected" warning issue fixed

v3.4.1 MK3 (4 octobre 2018)

  • Filament runout detection fixed
  • Stealth mode bug (indicated as slow Z-axis movements) fixed
  • Message "Filament sensor response is poor, disable it?" has been temporarily disabled - this feature tended to be too sensitive and unreliable. We are working on improved version of this feature.
  • Statistics during active print fixed
  • OctoPrint "Printer reset detected" warning issue fixed

v3.4.0 MK3 (12 septembre 2018)

  • Multi Material Upgrade 2.0 support
  • Filament sensor engine 2.0
  • Improved power panic
  • Adjustable beeper notifications
  • Feedrate and acceleration limits improved
  • PINDA state shown in menu
  • Time remaining fix

v3.4.0 MK2.5 (12 septembre 2018)

  • Multi Material Upgrade 2.0 support
  • Filament sensor engine 2.0
  • Adjustable beeper notifications
  • Time remaining fix

v3.4.0 MK3/MK2.5 Multi Material 2.0 (12 septembre 2018)

  • Multi Material Upgrade 2.0 support
  • Filament sensor engine 2.0
  • Improved power panic
  • Adjustable beeper notifications
  • Feedrate and acceleration limits improved
  • PINDA state shown in menu
  • Time remaining fix

v3.3.1 MK2.5 (16 juillet 2018)

  • Filament statistics fix
  • Fixed bug of G28 (auto home) gcode which used to cause undesired execution of mesh bed leveling after temperature calibration and occasional communication timeouts
  • Load filament improvement (if current Z coordinate is lower than 20 mm when loading filament starts, the printer will increase Z-axis position to ensure, that there will always be enough space for cleaning the nozzle)
  • Setup function fix

v3.3.1 MK3 (16 juillet 2018)

  • Filament statistics fix
  • Fixed bug of G28 (auto home) gcode which used to cause undesired execution of mesh bed leveling after temperature calibration and occasional communication timeouts
  • Load filament improvement (if current Z coordinate is lower than 20 mm when loading filament starts, the printer will increase Z-axis position to ensure, that there will always be enough space for cleaning the nozzle)
  • Setup function fix

v3.3.0 MK3 (2 juillet 2018)

  • Recurring crash detection limit
  • Crash detection and filament runout detection improvements and bugfixes (focused on Octoprint and USB printing)
  • Fixed erroneous movements during stop print
  • Supports multiple new languages (CZ, IT, DE, PL, ES) - It is necessary to use new Drivers & Apps v2.1.8 or higher to flash firmware with all language variants.
  • M86 gcode for safety timer
  • Temperature calibration improvements
  • Power panic fix
  • Supports remaining time estimation

v3.3.0 MK2.5 (2 juillet 2018)

  • Filament runout detection fixes and improvements (focused on Octoprint and USB printing)
  • Fixed erroneous movements during stop print
  • Different language variants (CZ, IT, ES, DE, PL) - English is included in all versions
  • M86 gcode for safety timer
  • Temperature calibration improvements
  • Supports remaining time estimation

v3.2.1 MK3 (18 mai 2018)

  • Patch release (see 3.2.0 changelog for the complete list of new features)
  • Fixed Wizard and Live adjust Z
  • XYZ calibration status has been improved

v3.2.1 MK2.5 (18 mai 2018)

  • Patch release (see 3.2.0 changelog for the complete list of new features)
  • Fixed Wizard and Live adjust Z
  • XYZ calibration status has been improved

v3.2.0 MK3 (10 mai 2018)

  • Linear advance is back!
  • New xyz calibration
  • Filament sensor function improved
  • Safety timer
  • Gcodes for setting temperature correction
  • Extruder linearity correction
  • Stealth mode for Z axis
  • Z calibration / mesh bed leveling: stall guard
  • Temperature calibration improved

v3.2.0 MK2.5 (10 mai 2018)

  • Linear advance is back!
  • Filament sensor function improved
  • Safety timer
  • Gcodes for setting temperature correction
  • Rambo 1.0 support
  • Temperature calibration improved

v3.1.4 MK2.5 (10 avril 2018)

  • More reliable and faster XYZ calibration with “image processing”.
  • Measurement point searching algorithm has been improved to supress “false targets” caused by heating meander near measurement point.

v3.1.3 MK3 (8 mars 2018)

  • More friendly Selftest – sensitivity of axes checks were decreased
  • Fixed flow setting from LCD menu and flow rate fix – extrusion multiplier was always set to 100%

v3.1.0 MK2SMK2/S Multi Material 1.0MK2 (12 novembre 2017)

  • Linear Advance
  • Wizard
  • Host keep alive messages – better OctoPrint compatibility
  • Sorting files in SD card menu by date or name
  • Check if file is complete
  • First layer calibration – V2 integrated into FW
  • Auto power mode
  • XYZ calibration details menu improved
  • PID calibration safety check
  • M220: Speed factor
  • Saving E steps per mm to EEPROM fixed
  • Long filename scrolling is improved
  • Read more about this major version at prusaprinters.org
  • There’s a known bug using Repetier server, please wait for the next release if you’re using it

v3.0.12 MK1 (23 juin 2017)

  • Amélioration de la calibration XYZ
  • Résultats de la calibration XYZ sont maintenant disponible dans le menu Support
  • Problèm Selftest régler
  • Amelioration du déchargement du filament
  • Multi Material
  • Quand l’impression est arreter, l’utilisateur sera demander quel filaments il faut décharger
  • “T?” Gcode rajouter, qui sélection quel extruder sera utiliser avant l’impression
  • Support pour la MK1 rajouter

Older versions