1. Tools necessary for this chapter

Original Prusa i3 MK3/MK3S/MK3S+ to MK3.9 upgrade (1.0)

• 1. Introduction
• 1a. Parts check
• 1b. Printer disassembly
• 1c. Parts preparation
• 2. Frame assembly
• 3. X-axis & X-carriage assembly
• 4. Z-axis assembly
• 5. Nextruder assembly
• 6. xLCD assembly
• 7. Y-carriage & Heatbed assembly
  1. Tools necessary for this chapter
  2. Heatbed cable assembly: parts preparation
  3. Heatbed cable assembly (part 1)
  4. Heatbed cable assembly (part 2)
  5. Heatbed cable assembly (part 3)
  6. Covering the heatbed cables: parts preparation
  7. Assembling the heatbed-cable-cover-bottom
  8. Assembling the heatbed-cable-cover: nylon filament
  9. Assembling the heatbed-cable-cover-bottom
  10. Assembling the heatbed-cable-cover-top
  11. Wrapping the textile sleeve
  12. Y-carriage variations
  13. Y-carriage (old): parts preparation
  14. Y-carriage (old): parts preparation (lubricating)
  15. Lubricating the bearing (old)
  16. Lubricating the bearing (old)
  17. Assembling the bearing clips (old)
  18. Installing the bearing on the Y-carriage (old)
  19. Aligning the bearing (old)
  20. Installing the bearings on the Y-carriage (old)
  21. Y-axis: smooth rods holders (old)
  22. Inserting smooth rods into Y-carriage (old)
  23. Y-carriage: parts preparation (new)
  24. Y-carriage (new): parts preparation (lubricating)
  25. Lubricating the bearing (new)
  26. Lubricating the bearing (new)
  27. Assembling the bearing clips (new)
  28. Installing the bearing on the Y-carriage (new)
  29. Aligning the bearing (new)
  30. Installing the bearings on the Y-carriage (new)
  31. Positioning of the bearings (new)
  32. Y-axis (new): smooth rods holders
  33. Inserting smooth rods into Y-carriage (new)
  34. Preparing Y-rod-holder
  35. Mounting the Y-rod-holder parts
  36. Installing the Y-carriage
  37. Aligning the smooth rods
  38. Assembling the Y belt: parts preparation
  39. Assembling the Y belt
  40. Assembling the Y belt
  41. Assembling the Y belt holder
  42. Assembling the Y belt tensioner
  43. Assembling the Y belt tensioner
  44. Tensioning the Y belt
  45. Belt tension check
  46. Aligning the Y belt
  47. Installing the Expansion joints: parts preparation
  48. Preparing the expansion joints
  49. Installing the Expansion joints
  50. Attaching the heatbed: parts preparation
  51. Attaching the heatbed
  52. Tightening the heatbed
  53. Guiding the heatbed cables: parts preparation
  54. Guiding the heatbed cables
  55. Covering the heatbed cables
  56. Verify all connections once more!
  57. Installing the ESP module: parts preparation
  58. Installing the ESP module
  59. Covering the xBuddy box: parts preparation
  60. Covering the xBuddy box
  61. Covering the xBuddy box
  62. Assembling the double spool holder (part 1)
  63. Assembling the double spool holder (part 2)
  64. Assembling the Filament guide: parts preparation
  65. Filament guide assembly (part 1)
  66. Filament guide assembly (part 2)
  67. SN label (required)
  68. Haribo time!
  69. That's it
• 8. Preflight check
• Manual changelog MK3.9 upgrade