⬢T10 Torx key

⬢2.5 mm Allen key

⬢4.0 mm Allen key

⬢A cardboard box is to be used as heatbed protection during the setup. Hint: you can use the Nextruder box shipped with your printer.

In the following steps, we will work with tools and install extruder above the heatbed, it is recommended to protect it against any possible damage. An empty Prusament box can serve this purpouse.

⬢For better access to the X-carriager in the following steps, manually move the heatbed down.

⬢Attach the print sheet by first aligning the rear cutout with the locking pins on the back of the heated bed. Hold the sheet by the front two cutouts and
slowly lay it down onto the heated bed - watch your fingers!

⬢Place the empty cardboard box approximately to the front center part of the heatbed.

⬢Move the X-axis assembly all the way to the front side of the printer.

⬢Move the X-carriage approximately to the center of the X-axis.

⬢Tool Changer Upper Lock (1x)

⬢Tool Changer Lower Lock (1x)

⬢Filament sensor spring A3 (4x)

⬢Push pin (4x)

⬢M3x12cT screw (4x)

⬢X-carriage-cover (1x)

⬢Insert each Push pin into the holes in both metal parts.

⬢Insert each Filament sensor spring A3 into the same holes as a Push pins.

⬢The tool changer is prepared. The springs must be sticking out.

⬢Line up the screws in the Tool Changer Lower Lock assembly with the blind holes in the X-carriage. See the correct orientation of the part. Use the U-shaped groove in the part.

⬢Take a look at the X-carriage from the rear side.

⬢Attach the Tool Changer Lower Lock assembly to the X-carriage and secure it with two M3x12cT screws from the front side. Ensure the correct orientation of the part.

⬢Attach the Tool Changer Upper Lock assembly to the X-carriage from the top and secure it with two M3x12cT screws from the front side.

⬢Turn the printer around so that its left side is facing you.

⬢Insert the M3nEs nut into the vertical extrusion on the rear of the left side.

⬢Connect the filament sensor cable into the filament sensor assembly.

⬢Move the filament sensor assembly to the top of the extrusion and align the M3nEs nut so that it aligns with the opening on the filament sensor assembly.

⬢Attach the filament sensor to the M3nEs nut using the M3x12rT screw and T10 screwdriver.

Starting from September 2024, you may receive a new black Fitting M5-4. The assembly and functionality remain identical to the blue one.

⬢The latest assemblies come with the nozzle seal pre-installed on the extruder dock. To confirm this, examine one of the extruder docks closely and compare it to the picture to see if the nozzle seal is already in place with the square nut. If not, continue with the text below.

⬢Carefully turn the printer 180° so that the PSU (Power Supply Unit) side is towards facing you.

⬢Locate the long metal profile with five M3 holes inside the rear aluminum extrusion and slide it all the way to the left side.

⬢We'll use the first two M3 holes in the metal profile.

⬢Place the first Nextruder on a box and guide the cables on the back side of the printer.

⬢Place the xl-dock-cable-router on the bottom metal sheet below the aluminum extrusion.

⬢There is a protruding screw from the xl-dock-cable-router. Attach the screw to the first screw hole on the long metal profile. Through the hole in the rear metal sheet, check if the cable holder is lined up with the hole.

⬢Push the 2.5 mm Allen key all the way through the hole in the rear metal sheet until you reach the middle screw in the xl-dock-cable-router and tighten the screw.

Starting from May 2024, you may receive a gray nozzle seal. The assembly and functionality remain identical to the red one.

⬢Nozzle seal (2x)

⬢Spring 15x5 (2x)

If you have a newer version of the xl-dock-cable-router that already has the nozzle seal installed, please skip to step First Nextruder docking.

The current nozzle seal position is temporary, the exact height will be set in the next chapter once all the Nextruder parts are mounted.

⬢Insert the nozzle seal (with the spring) into the dock.

⬢Using a 2.5 mm Allen key, tighten the screw so that the head of the screw is 1 mm above the dock.

⬢Good! The first dock is ready.

⬢Take the Nextruder and place it carefully next to the dock.

⬢Place the two metal inserts through the white holes in the dock. The magnets will help you dock the Nextruder.

Check that the Nozzle seal lightly touches the nozzle.

⬢Well done, the first Nextruder is ready!

⬢Place the second Nextruder on a box and guide the cables on the back side of the printer.

⬢Place the xl-dock-cable-router on the bottom metal sheet below the aluminum extrusion.

⬢There is a protruding screw from the xl-dock-cable-router. Attach the screw to the second screw hole on the long metal profile. Through the hole in the rear metal sheet, check if the cable holder is lined up with the hole.

⬢Push the 2.5 mm Allen key all the way through the hole in the rear metal sheet until you reach the middle screw in the xl-dock-cable-router and tighten the screw.

⬢The current nozzle seal position is temporary, the exact height will be set in the next chapter once all the Nextruder parts are mounted.

⬢Insert the nozzle seal (with the spring) into the dock.

⬢Using a 2.5 mm Allen key, tighten the screw so that the head of the screw is 1 mm above the dock.

⬢Good! The second dock is ready.

⬢Carefully turn the printer so that the front side is facing towards you.

⬢Take the Nextruder and place it carefully next to the dock.

⬢Place the two metal inserts through the white holes in the dock. The magnets will help you dock the Nextruder.

Check that the Nozzle seal lightly touches the nozzle.

⬢Well done, the second Nextruder is ready!

⬢There is a side filament sensor on the side of the printer. Insert the first Nextruder PTFE tube all the way into the upper hole in the part.

⬢Gently pull the PTFE tube back, this will push out the black collet in the side filament sensor and lock the tube.

⬢Repeat this process for the second Nextruder PTFE tube.

⬢The antenna connector is prepared by the manufacturer:

⬢The antenna connector has to be assembled by you:

⬢Locate the xl-rear-cable-management-plug (cover) on the rear of the printer.

⬢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.

⬢Connect the second Nextruder cable to the lower slot labeled DWARF 2.

⬢Connect the first Nextruder cable to the upper slot labeled DWARF 1.

⬢Attach the connectors cover to the screws. Push it all the way to the right and tighten the screws.

⬢Locate the Wi-Fi antenna connector on the left rear corner of the printer.

⬢Screw the antenna onto the connector.

The antenna can be rotated and bent in two directions.

⬢We recommend pointing the antenna straight up.

⬢Locate the xl-rear-cable-management-plug (cover) on the rear of the printer.

⬢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.

⬢Loosen four screws securing the electronics cover. Remove the cover.

⬢Connect the second Nextruder cable to the lower slot labeled DWARF 2.

⬢Connect the first Nextruder cable to the upper slot labeled DWARF 1.

⬢Remove the nut with the washers from the antenna connector.

⬢The antenna connector is prepared.

⬢The latest version of the connector has a thicker washer. We don't need it anymore. You can throw it away.

⬢Insert the antenna connector into the same-shaped hole in the Wi-Fi-antenna-holder .

⬢Push the antenna connector through the Wi-Fi-antenna-holder.

⬢Insert the thinner washer back onto the connector.

⬢Using the universal wrench, tighten the nut on an antenna connector.

⬢Good job! The Wi-Fi antenna is prepared.

⬢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 and tighten the screws.

⬢Connect the antenna cable with the antenna connector on the XL buddy board. Support the Wifi board with your finger while attaching the cable.

⬢Locate the Wi-Fi antenna connector in the middle of the printer.

⬢Screw the Wi-Fi antenna on the antenna connector. The antenna can be rotated around and bent in two directions.

⬢We recommend pointing the antenna straight upwards.

Original Prusa XL comes with two versions of the spool holder. Each version has slightly different parts and different procedures.

⬢Spool-holder-slider (2x)

⬢Spool-holder-base (2x)

⬢Spool-holder-mount (2x)

⬢M5x85 screw (2x)

⬢M5nEs nut (2x)

⬢Carefully turn the printer so that the side with the Wi-Fi antenna and side filament sensor faces you.

⬢Insert the M5nEs nut into the front support extrusion (with the orange plastic cover). Insert the side with the spring (metal plate) first, then push the nut inside.

⬢The M5nEs nut is free to move, you can adjust the position as you want. But remember, the nut must be slightly pushed in to smoothly move. Anyway, we recommend approximately the same position as you can see in the picture.

⬢Insert the second M5nEs nut in the extrusion approximately to the same position as shown.

⬢Attach the spool holder assembly to the M5nEs nut in the extrusion. Note that there is a protrusion on the spool-holder-mount, which must fit into the groove in the extrusion.

⬢Tighten the spool holder assembly.

Keep in mind that if you mount the Spool holder too high or too low, it may not fit the filament spool on it. There has to be enough space around it.

⬢Carefully turn the printer so that the side with the side filament sensor is facing you.

⬢Insert the M4nEs nut into the front support extrusion (with the orange plastic cover). Insert the side with the spring (metal plate) first, then push the nut inside.

⬢Insert the second M4nEs nut.

⬢The M4nEs nut is free to move, you can adjust the position as you want. But remember, the nut must be slightly pushed in to smoothly move. Anyway, we recommend approximately the same position as you can see in the picture.

Keep in mind that if you mount the Spool holder too high or too low, it may not fit the filament spool on it. There has to be enough space around it.

⬢Locate pins two pins on the spool-holder-base and line them with the rails in the spool-holder-slider.

⬢Insert the spool-holder-base into the spool-holder-slider and push it through a little through the part.

⬢Insert the M4x12 screw on the longer side of the 3mm Allen key.

⬢Insert the 3mm Allen key with the M4x12 screw through the assembled spool holder to the prepared hole in the spool-holder-base.

⬢The M4x12 screw has to protrude through the spool-holder-base.

⬢Attach the spool holder assembly to the M4nEs nut in the extrusion. Note that there is a protrusion on the spool-holder-mount, which must fit into the groove in the extrusion.

⬢Tighten the first spool holder assembly.

⬢Assemble the second spool holder and attach it to the lower M4nEs nut with an M4x12 screw.