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Summary of Contents for Prusa Research i3 MK2

  • Page 2 Please always refer to the ​ h ttp://www.prusa3d.com/drivers/ for an updated version of this Multi Material handbook (PDF download).     Original Prusa i3 MK2 Multi Material v0.9 from July 7, 2017. © Prusa Research s.r.o.
  • Page 3: About The Author

    About the author  rd​ Josef Prusa​ (born Feb 23​ , 1990) became interested in the 3D printing phenomenon before joining the Prague’s University of Economics in 2009 - at first it was a hobby, a new technology open to changes and improvements. The hobby soon became a passion and Josef grew into one of the leading developers of Adrien Bowyer’s international, open source, RepRap project.
  • Page 4: Table Of Contents

    Table of contents  About the author 2 Product details 3 Multi Material Upgrade introduction 3.1 How it functions 4 Software 4.1 Prusa3D Slic3r Multi Material 4.1.2 Slicing profiles 4.2 Multi Material post processor 5 Supported materials 5.1 Filaments and print quality 5.2 Loading/Unloading the filament 6 Upgrade and first print 7 Printing in Multi Material mode 7.1 Loading the model in Slic3r Multi Material...
  • Page 5: Product Details

    Working humidity: 85 % or less 3 Multi Material Upgrade introduction Multi Material Upgrade (MMU) is an addition to the Original Prusa i3 MK2/MK2S 3D printer which enables printing with up to 4 different materials in one single print. 3.1 How it functions Instead of traditional use of multiple independent extruders which is considered industry standard, MMU uses only one hotend with 4 extruder motors and Y splitter.
  • Page 6: Software

    Install the driver package from ​ h ttp://www.prusa3d.com/drivers/​ and during installation, select ​ O riginal Prusa i3 MK2 Multi Material​ as one of the installed printers. Two additional programs will be installed compared to the standard MK2/MK2S installation. 4.1 Prusa3D Slic3r Multi Material When you open the Prusa3D Slic3r Multi Material you can immediately see few differences.
  • Page 7 marked as ​ 1 ​ on the picture and you can see 4 material select boxes marked as ​ 2 . Material selectors have colored boxed on the left, by clicking on them you can assign color to each extruder and preview the model in final colors when the model is sliced in ​ P review tab.
  • Page 8: Slicing Profiles

    Additional print settings and materials can be used on the ​ M ulti Material in single extruder mode.​ Just install normal MK2 from Drivers package (when selection Original Prusa i3 MK2 Multi Material, everything is automatically pre selected) and select Multi Material Single Mode from printer options.
  • Page 9: Supported Materials

    5 Supported materials Currently only PLA, ABS, FLEX and PVA/BVOH (Primaselect PVA or Verbatim BVOH works reliably) are supported in Multi Material mode. Normal range of filaments can be used in single mode discussed at chapter ​ 8 Printing in Single mode with one extruder​ .
  • Page 10: Filaments And Print Quality

    Filaments which tend to be extremely stringy can however increase the chance of clogging the Y splitter and require cleaning. 5.1 Filaments and print quality Some filament are harder to print than others. If you are having troubles, try different brand or color.
  • Page 11: Upgrade And First Print

    Loading filament now has slightly changed behaviour compared to regular MK2 and always load/unload it from menu. When opening the Load or Unload menu, you have an option to Load/Unload all 4 automatically or each extruder separately. First phase of automatic loading is slow feed (In this phase you just push the filament to the entry hole of the extruder and as soon as you feel that the extruder grabs it, press the knob).
  • Page 12 Click ​ L oad parts...​ , select all additional files and ​ O pen​ . Now you can easily highlight every part and set the extruder with which it should be printed.
  • Page 13: Printing With Soluble Supports

    Easier to follow video guide how to prepare the g-code files is available at http://prusa3d.com/MMUVIDEO 7.2 Printing with soluble supports We strongly suggest to use Verbatim BVOH support material. It is available on our eshop http://shop.prusa3d.com/en/special/161-verbatim-bvoh-soluble-support-05kg.html​ or as a second best option Prima Select PVA also available http://shop.prusa3d.com/en/special/169-primaselect-pva-soluble-support-500g.html​...
  • Page 14: Printing In Single Mode With One Extruder

    8 Printing in Single mode with one extruder Features like Smooth Variable Layer Height or finer print settings are not yet available in Multi Material mode yet. But they can be used in Single mode with just one extruder enabled. It makes the printer basically bowden version of MK2. Simply launch ​...
  • Page 15: Frequently Asked Questions

    9 Frequently asked questions 9.1 Smart Wipe Tower size and additional print time How big is the smart wipe tower? Wipe tower is always 60 mm wide and contain between one and three 15 mm slots based on the model you are printing. If you only two materials are printed at one layer, one slot is used.
  • Page 16 Smart wipe tower prevents the need to use any sort of ooze shields as in traditional multi extruder systems! The size also remains constant, no matter how many copies of the objects you print or how big the object is.
  • Page 17 We suggest to print more copies of the same object, if printing small parts as the Smart Wipe Tower will remain the same size.
  • Page 18: Troubleshooting

    10 Troubleshooting In case of any problems, please first look here - http://manual.prusa3d.com/c/Troubleshooting...

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I3 mk2s

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