⬢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.
⬢Repeat this step for both tool heads:
⬢Check that the M3nS nut is inserted in the Nextruder dock.
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Make sure the nut is pushed into the dock all the way. If not use the Allen key to push the nut into the Nextruder dock.
The fallen nut may be in the Nextruder box. If not, use a spare nut in the Nozzle Seal bag.
Reminder: To handle the printer, always grab the handles on both sides of the printer. Do not lift the printer by the aluminum extrusions or the metal sheet profiles on top.
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 Nextruder box can serve this purpose.
⬢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.
⬢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.
⬢We'll use the first two M3 holes in the metal profile.
⬢There is a screw in the long metal profile which is fixing the part during the transport. Keep the screw in the metal profile for now.
Maintain the position of the long metal profile for the next step. It must not move! If the metal profile moves, just push it all the way to the left and fixed it with the screw.
⬢Place the first Nextruder on a box and guide the cables on the back side of the printer.
The nextruder can move when handling the cabling. Keep watching the Nextruder!
⬢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.
The dock is a press fit, so the screw needs to be tightened very hard.
⬢The following instructions need to be done correctly and carefully. Achieve better understanding and successful assembly by watching the video alongside the guide.
⬢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 following instructions need to be done correctly and carefully. Achieve better understanding and successful assembly by watching the video alongside the guide. Watch this prusa.io/XL-dock-installation.
⬢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 first 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.
⬢Attach and tighten the second spool holder assembly.
Do not use the spool holder as a handle!
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 first 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 into the extrusion.
⬢The M4nEs nuts are 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.
⬢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 spool holder assembly.
⬢Assemble the second spoolholder and attach it to the lower M4nEs nut with an M4x12 screw.
⬢Congratulation! Your Original Prusa XL is ready to be fired up!
⬢Compare the final look with the picture.
⬢Now, let's go to the last chapter 4. First run.
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