⬢E-axis: New extruder design improving print performance. The package also includes a red filament sensor, which is the latest hardware iteration. It is recommended for both MK3 and MK3S users to change it.
⬢Y-axis: New bearing holders (clips) and new printed smooth rod holders.
⬢LCD-knob: New design, similar to the Original Prusa MINI (part included in Y-axis G-code)
⬢X-axis(optional): New x-end parts with redesigned belt tensioning system. This upgrade is optional, as it brings no extra performance, only easier assembly.
Before we start disassembly, you need to print all the necessary parts. Note that G-codes for MK3 and MK3S are different!!!
⬢For MK3/MK3S to MK3S+ upgrade, you need to print the parts, which are separated into more G-codes. Use enclosed BLACK PETG or similar material. The color should be black to avoid issues.
⬢3D printed parts are very precise, however, there still might be a tolerance in the printed part and same goes for the size of the nut.
⬢Therefore it might happen, that the nut won't fit easily in or might be falling out. Let's see, how to fix it:
⬢Nut won't fit in: use a screw with a thread along its entire length (typically: M3x10, M3x18) and screw it from the opposite side of the opening. While tightening the screw, the nut will be pulled in. Remove the screw afterwards.
⬢Nut keeps falling out: Use a piece of tape to fix the nut temporarily in place, as soon as you insert the screw in, you can remove the tape. Using glue isn't recommended as it can partly reach into the thread and you won't be able to tighten the screw properly.
⬢Every time we recommend using the "screw pulling technique", you will be reminded with Joe's avatar ;)
To successfully finish the assembly please follow all these:
⬢Always read all the instructions at current step first, it will help you to understand, what you need to do.
⬢Don't follow pictures only! It is not enough, the written instructions are as brief as they could be. Read them.
⬢Read the comments from the other users, they are great source of ideas. We read them too and based on your feedback improve the manual and the entire assembly.
⬢Use reasonable force, the printed parts are tough, but not unbreakable. If it doesn't fit, check your approach twice.
⬢Most important: Enjoy the build, have fun. Cooperate with your kids, friends or partners. However, we take no responsibility for possible fights ;)
Once again check you have printed all the necessary parts for the upgrade.
If you have a question about something that isn't covered here, check out our additional resources. And if that doesn't do the trick, you can send an inquiry to [email protected] or through the button below.
