⬢Welcome to the tutorial on how to upgrade your Original Prusa i3 MK3/MK3S/MK3S+ to Original Prusa MK4S or MK3.9S.
The instructions are the same for both types of upgrades. MK3.9 has a few additional steps, which are thoroughly described. Please read the instructions carefully.
NOTE: The provided pictures feature the MK4S, so you may notice MK4S logos across the manual.
⬢Please prepare the upgrade kit received from Prusa Research.
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Contents
Original Prusa i3 MK3/MK3S/MK3S+ to MK4S/MK3.9S upgrade (1.01)
Update (EN) 12hrs ago... my last 3 days are destroyed and yes "German" is still not nearly up to date.i must find a answere how du modify and not downgrade mein MK3 to MK4S upgrade while i used MMU3this solution tell me how to Upgrade my second printe MK4 with MMU3 to S version so i have two idenitical setups
Step 1 is missing the warning "WARNING: Before you start disassembling the printer, make sure you have printed all the necessary parts for the upgrade!!!" that was present on the prior "MK3/MK3S/MK3s+ to MK4/MK3.9 upgrade" instructions!This warning should also be added to step 1 in both sections "1a. Parts check" and "1b. Printer disassembly".
Prusa must have changed what was supplied in their MK3/MK3S/MK3s+ to MK4S upgrade kit and forgot to fully update the kit's description on the shop webpage.The webpage used to say that excluding supplied PCCF parts for the extruder, you had to print the remaining MK4S 3D printed PETG parts using the PETG filament provided. Note - the webpage still states that the kit includes "Filament for printable parts" in the "This Product includes" section. My MK3S to MK4S upgrade kit arrived yesterday without any included filament rolls but definitely included a pile of 3D printed parts that I'm still checking thru for completeness.
Did you get a reply? Would be nice to know I'm not walking into a catch-22. Update: After having checked and compared each included part against the list of printable parts on the website, I can confirm that all of them are included.
