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Prusa MK3S MMU2 Acrylic Enclosure Kit
Prusa MK3S MMU2 Acrylic Enclosure Kit
Prusa MK3S MMU2 Acrylic Enclosure Kit
Prusa MK3S MMU2 Acrylic Enclosure Kit
Prusa MK3S MMU2 Acrylic Enclosure Kit
Prusa MK3S MMU2 Acrylic Enclosure Kit
Prusa MK3S MMU2 Acrylic Enclosure Kit
Prusa MK3S MMU2 Acrylic Enclosure Kit
Prusa MK3S MMU2 Acrylic Enclosure Kit

Prusa MK3S MMU2 Acrylic Enclosure Kit

Regular price $315.00 Sale

3D Printer Not Included

This is enclosure is specifically for those who have purchased the MMU2 multi-material attachment, but still works with the regular MK3/S if your MMU2 hasn't arrived yet. It makes use of the layout Prusa recommends in its DIY MMU2 enclosure kit, with the spool holders and filament detangler on the bottom.  

If you're looking for an enclosure specifically for the regular MK3 check out this version.  It's smaller and cheaper.

While the DIY version looks like a fun build, for those of us who don't have the time or simply prefer the look of all-acrylic, this product is a professional-grade, cool-looking enclosure kit you can assemble in about an hour.

Advantages of adding a 3DUPfitters enclosure:

  • The bulky spool holders and filament detangler box are stored right on top.
  • Optional fume filter or vent protects your indoor air quality.
  • A controlled temperature creates better quality prints.
  • Provides outside air to the power supply with no modifications to the printer
  • More flexibility to print different types of filaments, including ABS
  • Thick 6mm acrylic door and top and 3mm sides

The enclosure works by retaining the heat from the bed to bring the ambient temperature up high enough, stabilizing ABS and other filaments that expand when they cool. The optional fan will draw cool air across the power supply, simultaneously heating the air and cooling the supply.  The heated air circulates within the enclosure, providing a steading temperature; from there the air can be vented into the room, sent through an optional air filter (not included), or vented to the outside via a hose. (not included)

Note that because of the close tolerance around the power supply, the height of the printer must be stock for the MK3 with its rubber feet. The MK2 will also fit, but getting it to be the correct height will involve the use of one of the many feet available on Thingiverse.  

Multimaterial Unit (MMU2S) Support

This enclosure is specifically designed for when you have an MMU2 or MMU2S installed now or plan to get one in the future.  The enclosure was made larger so that the Prusa-designed spool holders and filament detangler (comes with the MMU2) can fit on top of the enclosure. 

How it's Built

All of the enclosure plastic parts are 3D printed in ABS to withstand the heat from the enclosure. The panels are cut on a US-made industrial laser and then flat packed for your assembly.   All you need for assembly is just a hex wrench and a small Phillips head screwdriver.  (not included.)

The spool holders and filament detangler modification are from Prusa, and you can either have us print them or print them yourself.  Since they are on the outside they can be printed from any type of filament.

What's Included

  • MMU2 Prusa Enclosure: 23" (Deep), 22" (Wide), 20" (Tall), 13 lbs. 
  • Fits the standard Prusa i3 MK3/MK3S
  • Accommodates both the old silver PSU and the new black PSU
  • Acrylic spool holder
  • 6mm acrylic front panel with frame, doors, injection-molded hinges, magnetic latch, custom-designed latch mount in ABS, steel strike plates, and matching screws.
  • 6mm top with support bar easily supports the weight of 5 1Kg spools. 
  • 3mm acrylic sides with access ports for cables and filament.
  • There is no bottom. The enclosure is designed to sit on a flat surface that acts as a bottom.
  • 60x60mm 12.6 CFM USB-powered fan.  3D print a cover if you don't wish to vent.  (USB power supply not included.)
  • One hundred forty-plus screws, nuts, bolts, all connecting plastic pieces, and miscellaneous parts. 

What's Not Included

  • Does not include the Prusa-supplied spool holders, which much be printed separately.
  • Put your logo on the front or sides.
  • Want something different?  Request a custom modification

Download the Prusa STL files for spool holders and buffer attachments.

Are you desperate enough to read the Installation Manual?