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1. Tools necessary for this chapter

Step 1 of 38 (Chapter 5 of 8)

Contents

Comments

⬢For this chapter, please prepare:

⬢2.5mm Allen key

⬢Torx key T6

⬢Torx key T10/8

⬢Wrench 13-16

⬢Universal wrench

Original Prusa MK4/MK3.9 to MK4S/MK3.9S upgrade (1.01)

1. Introduction
2. Upgrading the Y-axis
3. Upgrading the xLCD
4. Upgrading the Nextruder
4B. Upgrading the Nextruder (MMU3)
5. Upgrading the connectivity
6. Preflight check
Manual changelog

Comments

anihil

•

5 months ago

For someone reading this I spent 3 days trying to figure out why MK4S+MMU3 is not printing (loading filament properly) so this is the best place where it should be placed.
Background: Upgraded from MK4 to MK4S. Then bought assembled MMU3.
This whole chapter is explaining how to get new fan into your Nextruder.
Missing part is is explained here Original Prusa MMU3 Assembly -> Chapter 9A or 9B or 9C ( https://help.prusa3d.com/guide/9a-mk4-s-mk3-9-s-nextruder-mod_683106 ), for 9A it's "MK4/S, MK3.9/S Nextruder mod".
Hope this will help someone.