MMU3 printable parts

All printable parts for your Original Prusa MMU3. Before you start printing please read the instructions carefully.

Depending on the option selected, you either receive all printed parts from Prusa or you have to print them yourself. However, some parts requiring specific post-processing are included regardless, those aren't included in the G-codes (only as STLs).

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Changelog:

R4 parts - added support for MK4(S) and MK3.9(S), more information on the Prusa Forum

R3 parts - initial release for MK3S+ and MK3.5

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Printed parts included in both types of packages (printed by Prusa or self printed at home), therefore not required to be printed:

• MMU3 unit
  • mmu3-selector-front-plate
  • mmu3-label-plate
• MK3S+/MK3.5 extruder
  • adapter-printer-mmu
  • chimney-cover
  • extruder-idler-mmu
  • chimney
  • chimney-base
• MK4(S)/MK3.9(S) Nextruder
  • Idler-lever-A
  • Idler-lever-B
  • Idler-nut-FS
  • Main-plate
  • PG-assembly-adapter
  • Screw-guide
  • Swivel-A
  • Swivel-B

The MMU3 consists of 4 major parts:

• MMU3 unit
  • G-codes:
    • MMU3_UNIT1 (print 1x)
    • MMU3_UNIT2 (print 1x)
• Buffer
  • G-codes
    • MMU3_BUFFER1 (print 1x)
    • MMU3_BUFFER2 (print 5x)
• Spool holders
  • G-code
    • first check, which version you have, either injection molded (INJ) or vacuum formed (VAC) 
      • MMU_SPOOL_INJ (print 1x)
      • MMU_SPOOL_VAC (print 1x)
• Extruder upgrade
  • MK3S+/MK3.5 - parts are included in the package
  • MK4(S)/MK3.9(S) - parts are included in the package 

Note: G-codes are sliced for the MK3S+, however can be used on MK3.5 as well.

Print instructions

Before you start printing G-codes or individual parts, read the notes below each file.

Download the latest PrusaSlicer and use the following settings**:

• Print settings: 0.20mm QUALITY
• Filament: PETG (tested on Prusament)
• 20% Grid infill

** Note that print settings are recommended, but you can experiment with your own.