⬢This manual is fully compatible with the MK4/S printer. The pictures are of the MK4, but the assembly is the same.
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- Original Prusa Enclosure assembly
- 2A. Preparing the printer (MK4/S & MK3.9/S)
2A. Preparing the printer (MK4/S & MK3.9/S)
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- Original Prusa Enclosure assembly
- 1. Introduction
- 2A. Preparing the printer (MK4/S & MK3.9/S)
- 1. Important information
- 2. Tools necessary for this chapter
- 3. Preparing the printer
- 4. Releasing the PSU cables
- 5. Releasing the PSU
- 6. Removing the PSU
- 7. Guiding the cables: parts preparation
- 8. Guiding the cables
- 9. Guiding the cables
- 10. Mounting the printer frame support: part preparation
- 11. Mounting the printer frame support
- 12. Mounting the printer frame support
- 13. Covering the PSU cables: parts preparation
- 14. Covering the PSU cables
- 15. Fitting: parts preparation
- 16. Installing the fitting
- 17. Haribo time!
- 18. The printer is prepared
- 2B. Preparing the printer (MK3.5 Black PSU)
- 2C. Preparing the printer (MK3S+ Black PSU)
- 2D. Preparing the printer (MK3S+ Silver PSU)
- 3. Assembling the enclosure
- 4A. Installing the printer (MK4/S & MK3.9/S)
- 4B. Installing the printer (MK3.5 Black PSU)
- 5. Fire Suppression System (add-on)
- 4C. Installing the printer (MK3S+ Black PSU)
- 4D. Installing the printer (MK3S+ Silver PSU)
- 6. Hinged Lid (add-on)
- 6A. Hinged Lid with MMU3
- 6B. Hinged lid with MMU2S
- 7. Advanced filtration system (add-on)
- 8. Mechanical lock (add-on)
- 9. Quick release PSU cable - MK3S+ Black PSU (add-on)
- 10. Quick release PSU cable - MK4/3.9 Black PSU (add-on)
- 10. White LED strip (add-on)
- Manual changelog Enclosure
2A. Preparing the printer (MK4/S & MK3.9/S)
Relevant for:
Last updated a month ago Difficulty
Very easy Steps
18 Available languages
⬢For the following steps, please prepare:
⬢2.5mm Allen key
⬢T10 Torx key
⬢Needle-nose pliers for cutting zip ties
⬢Piece of cloth or fabric (at least 15x15 cm) for covering the heatbed
Before we start with partial disassembling of the printer, proceed with the following steps:
⬢Unload the filament from the extruder.
⬢Turn the printer off and unplug the power cable.
⬢Remove the steel sheet from the heatbed.
⬢Remove the USB flash disk.
⬢Take off the filament spool from the spool holder and remove the spool holder from the printer.
⬢Carefully place the printer on its left side (the side with the electronics box - the xBuddy box).
WARNING: Avoid cutting the cables!
⬢From both cable clips on the PSU side, remove all the cables guiding from the PSU.
⬢Carefully cut the zip ties securing the cable bundle to the frame.
⬢Carefully cut the zip tie attaching the PSU cable to the cable clip on the second short extrusion profile.
⬢Place the printer back on its feet.
⬢Release two screws holding the PSU-cover and remove the cover from the PSU.
⬢Loosen two screws holding the PSU on the aluminum extrusion. Do not remove them completely! Keep them in place.
⬢Release two round head screws from the front side of the frame securing the PSU.
If one of the screws is hidden behind the X-end, manually rotate both threaded rods at the same time to move the X-axis up or down.
⬢Slightly lift the PSU until it can be completely released from the printer.
⬢Remove the PSU from the printer and place it behind the back of the printer on the piece of cloth, like in the picture.
You will need to slightly lift the printer to guide the cables out of the frame.
⬢Carefully turn the printer on the "electronics" side.
Avoid putting the printer on the LCD cables!
⬢For the following steps, please prepare:
⬢Zip tie (3x)
In the upcoming steps, please tighten all zip ties carefully, as you might pinch/break the cables.
⬢Locate the circular holes in the frame near the Z-axis right motor.
⬢Slide the zip tie through the circular holes in the frame to create a loop.
⬢Guide the motor cable in the zip tie and tighten it. Be careful not to over tighten the tie as it can cut the wires. Cut the remaining part.
⬢Continue downwards and insert Y-axis motor cable to the current bundle.
⬢Secure the cables to the printer frame with another zip tie. Do not overtighten the zip tie!
⬢Guide the xLCD cable and PE cable together with the motor cables.
⬢Secure the cable management to the printer frame with the zip tie. Do not overtighten the zip tie!
⬢For the following steps, please prepare:
⬢Printer frame support (1x)
⬢M4x10r screw (2x) previously removed from the PSU
⬢Slide the printer frame support on the screws in the aluminum extrusions (instead of the PSU).
⬢Move the printer frame support to the frame.
⬢Secure the printer frame support to the frame with two M4x10r screws.
⬢Fully tighten the screws on the printer frame support.
⬢For the following steps, please prepare:
⬢Textile sleeve 8 x 350 mm (1x)
⬢Zip tie (2x)
⬢From the electronics, wrap the PSU cable (including the black&white power panic cable and the green&yellow PE cable) in the textile sleeve.
⬢Leave 2-5 cm from the electronics uncovered. Secure the end of the sleeve with the zip tie.
⬢Wrap the entire length of the bundle and slightly twist the sleeve, not the cables.
⬢Secure the end of the sleeve with the zip tie.
⬢For the following steps, please prepare:
⬢Fitting QSM-M5 (1x)
Starting from September 2024, you may receive a new black Fitting M5-4. The assembly and functionality remain identical to the blue one.
If you plan to use an MMU3, please skip these steps.
⬢Insert and screw the Fitting QSM-M5 directly into the threaded filament hole in the extruder.
⬢That was easy, wasn't it? Reward yourself and replenish your energy for the next chapter.
⬢Eat the second row of the gummy bears. Leave the others!
⬢Carefully place the PSU on the heatbed. Use a piece of cloth as protection.
⬢Well done, the printer is prepared.
Place the printer aside for some time, we will need it later on.
⬢Now, let's go to the next chapter: 3. Assembling the enclosure
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