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LCD menu i3 (pre firmware 3.9.0)

Last updated 2 years ago
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This article describes the menu system BEFORE firmware 3.9.0 for the Original Prusa i3 MK3S.

Controlling the LCD screen is done by a single control element: a rotational knob that you press to confirm the selection. By single pressing the control button on the information screen, you enter the main menu.

The reset button is placed directly under the control knob. Pressing the reset button equates to quickly toggling the power switch (hard reset). It is useful when the printer exhibits weird behavior or you see a failed print that requires immediate cancellation.

Shortcut: Quick access to Move Z-axis function - While on the Info-screen, press and hold the Control knob for 3 seconds

Main screen

  1. Nozzle temperature (actual / desired temperature)
  2. Heatbed temperature (actual / desired temperature)
  3. Progress of printing in % - shown only during the printing
  4. Status bar (Prusa i3 MK3S ready. / Heating / file_name.gcode, etc.)
  5. Z-axis position
  6. Printing speed
  7. Remaining time estimation
Shortcut: Quick access to change Printing speed - While on the Info-screen, spin the knob either direction, more than one rotation, and see the percentage change.

Hierarchy of the LCD-menu

- Info screen (Main info-screen)

- Live adjust Z (during the printing process only)

- Tune (during the printing process only)

  • Speed
  • Nozzle
  • Bed
  • Fan speed
  • Flow
  • Change filament
  • Mode

- Pause print (during the printing process only)

- Stop print (during the printing process only)

- Preheat

  • PLA - 215/60
  • PET - 230/85
  • ABS - 255/100
  • ASA - 260/105
  • HIPS - 220/100
  • PP - 254/100
  • FLEX - 230/50
  • Cooldown

- Print from SD

- Filament autoload (Load filament if Filament autoload is off)

- Unload filament

- Settings

  • Temperature
    • Nozzle
    • Bed
    • Fan speed
  • Move axis
    • Move X
    • Move Y
    • Move Z
    • Extruder
    • Disable steppers
  • Filament sensor - On / Off
  • F. autoload - On / Off / N/A
  • Fans check - On / Off
  • Mode - Normal / Stealth
  • Crash detection - On / Off
  • HW setup
    • Steel sheets
    • Nozzle d. - 0.25 / 0.40 / 0.60
    • Checks
      • Nozzle - warn / strict / none
      • Model - warn / strict / none
      • Firmware - warn / strict / none
  • Mesh bed leveling
    • Mesh 3x3 / 7x7
    • Z-probe nr. 1 / 3 / 5
    • Magnets comp. - On / Off
  • Lin. correction
  • Temperature calibration - On / Off
  • RPi port - On / Off
  • Live adjust Z
  • Select language
  • SD card - Normal / FlashAir
  • Sort - Time / Alphabet / None
  • Sound - Loud / Once / Silent / Assist

- Calibration

  • Wizard
  • First layer calibration
  • Auto home
  • Selftest
  • Calibrate XYZ
  • Calibrate Z
  • Mesh Bed Leveling
  • Bed level correction
  • PID Calibration
  • Reset XYZ calibration
  • Temperature Calibration

- Statistics

- Fail stats

  • Last print
  • Total

- Support

  • Firmware version
  • XYZ calibration detail
  • Extruder info
  • Sensor info
  • Belt status
  • Temperatures
  • Voltages
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