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1. Upgrade manual info
Step 1 of 18 (Chapter 1 of 8)
Contents
Comments
This manual guides you through upgrading your Original Prusa MK4 to MK4S or MK3.9 to MK3.9S, with all instructions applying to both upgrades.
NOTE: The provided pictures feature the MK4S, so you may notice MK4S logos across the manual.
Contents
Original Prusa MK4/MK3.9 to MK4S/MK3.9S upgrade (1.01)
- 1. Introduction
- Upgrade manual info
- Preparing the upgrade kit
- What will be upgraded?
- Getting the necessary tools
- Labels guide
- Printed parts - versioning
- We are here for you!
- Pro tip: inserting the nuts
- View high resolution images
- Important: Electronics protection
- How to successfully finish the assembly
- Prepare your desk
- Parts no longer needed
- Cleaning the hotend
- Reward yourself
- Preparing the printer
- MMU3 preparation
- Additional Information
- 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
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frismiro
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It is really bad joke, that the new MK4S display holder cannot be used with encloser - it is too high and the door cannot be closed. No mention in the instruction, this surprise came whern all is ready and I wanted to put the printer back to encloser. Kde udělali soudruzi od Průši chybu ??? Really shame
Jan Kratochvíl
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Hello. You can print the adapters for the new xLCD cover to use it with the enclosure: https://www.printables.com/model/251931-enclosure-printable-parts/files
frismiro
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Yes, thanks. However it makes me upset, this surprise. I promised to my colleagues to have everything ready today - and the only last step to put the printer back to encloser.... there is no excuse for Prusa.
Richard
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On the Original Prusa MK3.9S page (prusa.io/mk39s), the links to the Assembly Instructions are reversed. The link for the Original Prusa MK4/MK3.9 to MK4S/MK3.9S upgrade take you to the instructions for the Original Prusa i3 MK3/MK3S/MK3S+ to MK4S/MK3.9S upgrade
MagnusVesper
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If you want the whole X-carriage to be PCCF, print out the x-carriage and main-plate* before starting.
The x-carriage-back, x-carriage-cable-holder, x-carriage-cable-holder-cover, and x-carriage-clip are also left as PETG. But all of those parts can be easily removed and replaced individually. Only the x-carriage and main-plate require you dissasemble multiple parts. * The MMU3 comes with a main-plate printed from a MJF printer.
So you can skip the main-plate if you plan on getting a MMU3 or already have one.
The x-carriage-back, x-carriage-cable-holder, x-carriage-cable-holder-cover, and x-carriage-clip are also left as PETG. But all of those parts can be easily removed and replaced individually. Only the x-carriage and main-plate require you dissasemble multiple parts. * The MMU3 comes with a main-plate printed from a MJF printer.
So you can skip the main-plate if you plan on getting a MMU3 or already have one.
MagnusVesper
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You may want to print out the Y-belt-idler if you plan on replacing that too. The new LCD holder is really frustrating to remove and blocks the screws you use to remove the Y-belt-idler.
VisualReversal
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Just a note on the old xLCD to hopefully save you some time. If you have the old version and are using that kit (the one that contains a 3D printed xLCD cover) and you already have you're MK4 xLCD attrached to the outside of your Original Prusa Enclosure, then you don't need to print anything. I did find an R2 version of the left bracket where the PE casble is, but it isn't very different from the R1 version. Anyway, the xLCD brackets, the knob, and all the fasteners can be resued. Basically you're just swapping out the 3D printed xLCD cover that has "MK4" screen printed on it with an identical 3D printed xLCD cover with "MK4S" screen printed on it. That's it. Frankly, having one of each (the old xLCD and the new xLCD) I wish both kits just came with the printed cover. To my eye it just looks better.
Dita Tenglerova
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For Users with Encloser and MK4 and external XLCD : Please Print first the new Adapter before you start to Upgrade https://www.printables.com/model/251931-enclosure-printable-parts/files
xLCD-adapter_L (MK4S).stl
xLCD-adapter_ (MK4S).stl
xLCD-adapter_L (MK4S).stl
xLCD-adapter_ (MK4S).stl
Erwan Velu
•
Thanks for pointing this this out.
Small typo : xLCD-adapter_ (MK4S).stl -> xLCD-adapter_ R(MK4S).stl
Small typo : xLCD-adapter_ (MK4S).stl -> xLCD-adapter_ R(MK4S).stl