⬢From the front face of the printer:

⬢Pull out the right extrusion cover.

⬢Pull out the left extrusion cover.

⬢Fit the M3nE nut and push it into the profile in the direction of the pins.

⬢Turn the M3nE nut into the profile to secure it.

⬢Good job, the nut is secured.

⬢Insert two M3nEs inserts into the left profile.

⬢Insert two M3nEs inserts into the right profile.

Insert the nuts approximately as shown in the photo.

⬢Lower bellows holder (1x)

⬢Bellows magnet holder (2x)

⬢Bellows magnet spacer (2x)

⬢Magnets (2x)

⬢M3x6 screw (4x)

⬢M3x8bT screw (4x)

⬢Take bellows magnet spacer and place in on the bellows magnet holder.

⬢Insert the bellows magnet spacer with bellows magnet holder under the cutout in the lower bellows holder.

⬢Secure the assembly with two M3x8bT using a T10 Torx screwdriver.

⬢Take bellows magnet spacer and place in on the below magnet hoder.

⬢Insert the bellows magnet spacer with bellows magnet holder under the cutout in the lower bellows holder. Secure the assembly with two M3x8bT using a T10 Torx screwdriver.

⬢Take a magnet and carefully and slowly place it in the left cut-out. The polarity of the magnet is not important.

⬢Take a magnet and carefully and slowly place it in the right cut-out. The polarity of the magnet is not important.

⬢Attach the lower bellows holder assembly on the XL base with magnets facing up.

Hint: You can align the M3nEs nuts with the M3 hole in the lower bellows holder using the square holes and an Allen wrench.

⬢Insert the M3x6 screw to the left front hole and tighten the screw using a 2.5 mm Allen key.

⬢Insert the M3x6 screw to the left rear hole and tighten the screw using a 2.5 mm Allen key.

Hint: You can align the M3nEs nuts with the M3 hole in the lower bellows holder using the square holes and an Allen wrench.

⬢Insert the M3x6 screw into the right front hole and tighten the screw using a 2.5 mm Allen key.

⬢Insert the M3x6 screw into the right rear hole and tighten the screw using a 2.5 mm Allen key.

The bellows will be attached to the printer at the end of the assembly manual.

⬢From the bottom side of the CoreXY:

⬢Insert two M3nEs inserts into the left extrusion.

⬢Insert two M3nEs inserts into the right extrusion.

Insert the nuts approximately as shown in the photo.

⬢Upper magnet cover (2x)

⬢Upper magnet holder (2x)

⬢Magnets (4x)

⬢M3x8bT screw (8x)

⬢Lockwasher (4x)

⬢Take two Lockwashers and place them on the upper magnet holder.

⬢Place the upper magnet cover on the washers with the upper magnet holder.

⬢Secure the assembly with two M3x8bT screws using a T10 Torx screwdriver.

⬢Follow the same procedure to assemble the second upper magnet cover.

⬢Carefully and slowly attach the magnets on the bottom side of the upper magnet holder on both upper magnet covers. The polarity of the magnet is not important.

⬢Carefully and slowly insert the magnets into the cut-out in the upper magnet covers. The polarity of the magnet is not important.

⬢There are two magnets on each upper magnet holder. Check that the assembly looks as shown.

⬢Insert the first upper magnet cover assembly into the right CoreXY extrusion.

⬢Insert two M3x8bT screws and secure them with the T10 Torx screwdriver.

⬢Insert the second upper magnet cover assembly into the left CoreXY extrusion.

⬢Insert two M3x8bT screws and secure them with the T10 Torx screwdriver.

⬢XL Enclosure board cover (1x)

⬢XL Enclosure splitter (1x)

⬢M3x6 screw (2x)

⬢Ensure that the longer metal section is facing away from you.

⬢Insert the XL Enclosure splitter as shown in the picture (PRUSA logo facing you).

⬢Secure the XL Enclosure splitter with two M3x6 screws.

⬢Fixing bracket front right (1x)

⬢Fixing bracket front left (1x)

⬢Fixing bracket back left (1x)

⬢Fixing bracket back right (1x)

⬢M3x10rT screw (7x)

⬢On the upper left side CoreXY:

⬢Using a T10 Torx screwdriver, remove the M3x8bT screw.

⬢Attach the fixing bracket front left onto the metal cover.

⬢On the upper right side CoreXY:

⬢Using a T10 Torx screwdriver, remove the M3x8bT screw.

⬢Attach the fixing bracket front right onto the metal cover. Bracket slips under LED cover lip.

⬢Ensure the front left fixing bracket is correctly positioned:

⬢Insert the M3x10rT screw and secure it with the T10 Torx screwsdriver.

⬢Turn the printer so the rear side is facing you.

⬢Remove three M3x8bT screws.

⬢Attach the fixing bracket rear left.

⬢Secure the fixing bracket rear left with the M3x10rT screw.

⬢Remove two M3x8bT screws.

⬢Attach the fixing bracket rear right.

⬢Secure the fixing bracket rear right with two M3x10rT screws.

⬢Release (a few turns are enough) four M3 screws on the XL buddy box.

⬢Slide up and remove the XL buddy cover.

The next line is only for five-head printers. Otherwise, skip to the next step.

⬢By pressing the security latch, unplug the DWARF3, DWARF4 and DWARF5 from the board.

⬢This step applies only if your printer has a side antenna. If not, proceed to the next step.

⬢Loosen two screws on the cover slightly. No need to remove them completely. Push the cover to the right and remove it from the printer.

⬢Now proceed to the Nextruder unpluging

If you have the antenna on the side of the printer -> remove the cover and proceed to the next step.

⬢Gently unplug the antenna connector from the board.

⬢Release (a few turns are enough) two M3 screws on antenna-holder.

⬢Push the cover to the right.

⬢Carefully remove the antenna-holder with the cable from the printer.

⬢In this step, select the appropriate option based on your XL printer variant:

⬢From the left side of the rear cable management upper, remove two M3x4rT screws. Do not throw them away!

⬢From the right side of the rear cable management upper, remove two M3x4rT screws. Do not throw them away!

⬢Carefully remove the rear cable management cover from the printer by pulling it toward you.

⬢On the right side, cut off two zip-ties.

⬢Locate the right PE screw on the board.

⬢Remove the M3x5 screw and leave the cable there. Do not throw away the screw!

⬢PE cable (the longest one) - 350mm (1x)

⬢Fan cable (4 wires)- 450mm (1x)

⬢LED cable (5 wires) - 420mm (1x)

⬢M3x5 screw (1x) you removed in the previous steps

⬢Zip-tie (4x)

⬢Insert the M3x5 screw through the red end of the PE cable.

⬢Attach the PE cable with the M3x5 screw through the free PE cable (which we released in the previous step). Secure both cables using a 2.5mm Allen key.

⬢Adjust the cable routing as shown in the picture.

⬢Adjust the cable routing as shown in the picture.

⬢Slide the connector onto the metal sheet protrusion.

⬢Connect the fan cable to the right connector on the FDM XL Enclosure splitter.

⬢Adjust the cable routing as shown in the picture.

⬢Connect the second end to the FAN1 connector on the XL sandwich board.

⬢By pressing safety latch, disconnect the LED cable from the XL sandwich.

⬢Connect the LED cable to the left connector on the FDM XL Enclosure splitter.

⬢Connect the black LED cable to the middle connector on the FDM XL Enclosure splitter.

⬢Lead the cable behind the Nextruders cables.

⬢Connect the second end to the LED Light 2 connector on the XL sandwich board.

⬢Locate the metal perforation on the XL enclosure board assembly.

⬢Secure the cables carefully to the XL enclosure board cover. Do not overtighten the zip-tie. Cut the end of the zip-tie.

⬢Attach the cables to the black sleeve with a zip-tie and secure carefully. Do not overtighten the zip-tie. Cut off the end of the cable tie.

⬢Rear cable management upper (1x) you removed in the previous steps

⬢M3x4rT screws (4x) you removed in the previous steps

⬢Attach the rear cable management upper to the printer.

⬢Secure the left side with two M3x4rT screws.

⬢Secure the right side with two M3x4rT screws.

⬢Connect the first dock (from the right side) cable to the upper slot labeled DWARF 1.

⬢Connect the second dock (from the right side) cable to the lower slot labeled DWARF 2.

If you have the antenna on the side of the printer -> attach the cover, secure the screw and proceed to the next step.

⬢Push the antenna cable through the opening in the cable cover (metal sheet) and guide it behind the cover to the electronics box.

⬢Attach the antenna-holder on the screws and push the cover to the left. Tighten the screws.

If you have the antenna on the side of the printer -> skip to the black line.

⬢Connect the antenna cable to the antenna connector on the board.

The next line is only for printers with more than 2 Nextruders. Otherwise go to the next step.

⬢Connect the third, fourth and fifth (from the right) Nextruder to the splitter:

⬢XL splitter with connected Nextruders has to look like this.

⬢Put the XL buddy box cover back on the printer.

⬢Check Nextruders cables, they have to be inside the cutout in the cover.

⬢With a T10 key tighten the four screws.

⬢Lubricant accumulates mainly in the linear rail channels on the linear sides.

⬢Turn the printer, so the front side is facing you.

⬢Gently stretch the belt with your finger. If the belt feels loose as shown in the picture, proceed to the next step.