1. Begin assembly

Printer maintenance

• Filament Guide addon (MK4S/MK4)
• How to install the Nextruder V6 Nozzle Adapter (MK4/MK3.9)
• How to replace the Prusa Nozzle (MK4/MK3.9)
• How to replace Loveboard (MK4S/MK4/MK3.9S/MK3.9)
• How to replace the silver PSU with the black PSU
• How to replace a hotend heater (MK4/MK3.9)
• How to replace a hotend thermistor (MK4/MK3.9)
• How to replace a hotend fan (MK4 / MK3.9)
• How to replace the xBuddy board (MK4/MK3.9/MK3.5)
  1. Begin assembly
  2. Introduction
  3. Tools necessary for this chapter
  4. Preparing the printer
  5. Opening the xBuddy box
  6. xBuddy cable management
  7. Removing the covers and ESP Wi-Fi
  8. Removing the Heatbed & Ext. cables
  9. Removing all the other cables
  10. Removing the xBuddy board
  11. New xBuddy board: parts preparation
  12. Applying the thermal pads
  13. Attaching the new xBuddy box
  14. Attaching the zip ties
  15. Installing the PE cable
  16. Installing the power cables
  17. Installing the cables
  18. Installing the motor cables
  19. Installing the extruder cable bundle
  20. MK3.5: Connecting the adapter
  21. Installing the heatbed cable bundle
  22. Wi-Fi & cable covers
  23. Covering the xBuddy box
  24. Firmware update (part 1)
  25. Firmware update (part 2)
  26. Wizard - Selftest
• How to replace a print fan (MK4 / MK3.9)
• How to replace a hotend assembly (MK4 / MK3.9)
• How to replace a Heatbed Thermistor (MK4/S, MK3.9/S, MK3.5/S)
• How to replace a hotend heatsink (MK4 / MK3.9)
• How to replace xLCD (MK4/MK3.9/MK3.5)