For the following steps, we need a 3mm Allen key without the torque indicator.

⬢Take the assembled torque indicator.

⬢Pull out the plastic handle.

⬢Pull out the 3mm Allen key from the torque indicator.

Keep the 3D printed indicator for later use.

⬢CoreXY assembly (1x)

⬢M4x12 screw (8x)

⬢M3x10 screw (2x)

⬢M3nEs nut (6x)

⬢Measure approximately 23 cm (9") from the right extrusion.

⬢Insert three M3nEs nuts into the left extrusion.

⬢Insert three M3nEs nuts into the right extrusion.

⬢Are you left or right-handed? The printer should be already laying on its left side from the previous chapter. If you are a left-hander rotate it carefully on the opposite right side (see the picture). We are going to attach the upper CoreXY part and tighten the screws to interconnect both parts together. The instructions are the same, choose the side which suits you better for tightening the screws.

⬢There's a hole in the extrusion that the pin has to fit into.

⬢Move the rear profile insert inside each extrusion of the CoreXY to the rear side of the assembly.

⬢Slide the remaining inserts approximately to the middle. Precise position will be addressed later.

⬢Rotate the CoreXY on its longer side and put it near the top of the four base extrusions.

⬢The rear profile inserts must be facing against the rear extrusions. Do not push the CoreXY all the way in until you are prompted.

⬢First, slide the CoreXY assembly on both rear extrusions.

⬢Align the remaining profile inserts with both Z-axis extrusions.

⬢Slide the CoreXY on both Z-axis extrusions.

⬢Insert the M4x12 screws into both holes. Same way as you did with the base.

There might be a slight gap between parts, we will address this in the next step.

⬢Tighten the screws until you reach the metal plate, then stop! We will do the final tightening later on using the torque indicator.

⬢Repeat this procedure on the three remaining extrusions.

⬢Manipulate the base using the extrusions.

⬢Rotate the base back on its feet (the Core XY is facing up).

⬢Insert the 3mm Allen key into the torque indicator.

⬢Put on the Allen key handle from the other side.

⬢The assembled torque indicator looks like this.

⬢Prepare the 3mm Allen key with the torque indicator.

⬢Insert the shorter side of the 3mm Allen key into the screw securing the CoreXY assembly.

⬢Tighten the screw till you reach the "OK" line and the 3mm Allen key is slightly bent.

⬢Repeat this procedure on all M4x12 screws inserted into the Z-axis extrusions.

⬢On the left side of the CoreXY, there are three M3nEs nuts in the extrusion. Slide the middle M3nEs nut behind the linear rail. Align its hole with the hole in the linear rail.

⬢Insert the M3x10 screw into the upper hole.

⬢Tighten the M3x10 screw with a 2.5mm Allen key.

⬢On the right side of the CoreXY there are three M3nEs nuts in the extrusion. Slide the middle nut behind the linear rail. Align its hole with the hole in the linear rail.

⬢Insert the M3x10 screw into the upper hole.

⬢Tighten the M3x10 screw with a 2.5mm Allen key.

Turn the printer so that the left side is facing towards you. Use the safety sticker as a guide.

⬢Focus on the left half of the extrusion base, where we will install the M3nEs nut:

The exact position of the nut will be adjusted later on. For now, slide it approximately to the center of the extrusion.

⬢Make sure the M3nEs nut is facing up like in the picture.

⬢Place the Earthing-connector onto the M3nEs nut. The vertical part must be facing out from the printer.

⬢Insert the M3x8rT screw and secure both parts together with a T10 screwdriver.

Repeat the same procedure to install the Earthing-connectors to the top and side extrusions.

⬢Start by inserting the M3nEs nuts in both vertical extrusions on the left side. Roughly 2 cm from the bottom extrusion.

⬢Continue by inserting the M3nEs nut in the extrusions on the top side. Slide it approximately to the center of the extrusion.

⬢Now place the Earthing connector onto the M3nEs nut. The vertical part must be facing out from the printer.

⬢Proceed the same way with the extrusions on the right side of the frame.

The exact position of each nut will be adjusted later on.

Do not tighten the screw firmly, we might need to adjust the position of the Earthing-connector in the extrusion later on. 4-5 turns are enough.

This step explains how to insert and lock the cover-clip. The exact position of each clip will be described in the upcoming steps.

Use any extrusion closest to you.

⬢Hold the clip so that its longer side is aligned vertically. Then insert the cover-clip into the extrusion.

⬢Once the clip is in the extrusion, rotate it 90 degrees. Both directions are fine, the clip is symmetrical

⬢Now, the cover-clip is secured.

Note that due to tolerances, the clip might not hold in place. This is OK, its main purpose is withstand being pulled/pushed and it will be secure in place using a screw.

⬢Insert the cover-clips in places, use the pictures as reference:

The final position of each cover-clip will be adjusted later on.

⬢XL rear panel (1x)

⬢Extrusion cover 354 mm (2x)

⬢M3x8rT screw (10x)

In order to be able to plug in cables, we need to open the box with electronics. Don't throw away the covers or the fasteners!

⬢Loosen slightly all four screws on the XL Buddy box cover. No need to remove them completely. Slide the cover upwards and remove it.

⬢Release and remove four M3x5rT screws on the upper cable cover.

⬢Take the entire cover off.

Place both covers somewhere safe, we will put them back soon.

⬢For easier assembly place the bottom edge of the XL rear panel approximately 2 cm (0.8 inches) behind the bottom rear extrusion of the printer base.

⬢Rotate (close) the XL rear panel to the rear side of the printer. Make sure there is no cable in the way.

⬢Carefully slide the XL rear panel up until it stops on the top stops.

⬢Continue by pressing the lower rear panel against the bottom extrusion

⬢Continue to the next step.

⬢From the inside of the printer, align the Earthing-connectors with the holes of the rear panel.

⬢If needed release the screw slightly and adjust the Earthing-connector, then tighten it.

⬢From the outside (rear side), insert the M3x8rT screw and secure the rear panel using a T10 screwdriver.

⬢Insert the M3x8rT screw into the hole and align the Earthing-connector.

⬢Fully tighten the screw with the T10 screwdriver.

⬢Tighten the screw in the M3nEs nut to secure its position.

⬢Inside the printer: Line up all cover-clips with the holes in the rear panel.

⬢Outside the printer (rear side): Secure the cover-clips with eight M3x8rT screws using a T10 screwdriver.

In the following steps, we will focus on routing and connecting all the cables on the rear side.

⬢Turn the printer's rear side towards you.

⬢On the left edge, start from the bottom. Grab the PE, motor with xLCD cables and gently push them into the extrusion.

⬢Secure the cables with the Extrusion cover 354 mm.

⬢Notice the two levers on each side of the electronics box. Slide out the top lever on either side to gently lift the splitter board out of its slot.

⬢Take the PE cable.

⬢Locate the PE Faston on the main electronics board (Sandwich board). Slide (connect) the PE cable all the way to the PE connection on the board.

⬢Return the splitter board back to its original position by pushing it in.

⬢Under the cables, there are two perforations in the metal sheet.

⬢Push two zip ties through the perforations in the metal sheet to secure all the cables guiding from the electronics box. Tighten them gently.

⬢Cut the excess of the zip ties.

⬢The black twisted wire is for the filament sensor. The filament sensor itself will be installed later.

⬢On the right edge, start from the bottom. Grab the motor cable and gently push it into the extrusion.

⬢Secure the cable with the Extrusion cover 354 mm.

⬢Connect all cables from the right side in the following order:

⬢Take a look from the top and on the rear right edge remove the grounding cover from the grounding plug on the CoreXY assembly.

⬢Connect the PE cable to the CoreXY grounding plug.

⬢Push two zip ties through the perforations in the metal sheet to secure all the cables guiding from the electronics box. Tighten them gently.

⬢Cut the excess of the zip ties.

⬢The black twisted wire is for the filament sensor. The filament sensor itself will be installed later.

⬢Rear-cable-management-upper (1x)

⬢XL-buddy-box-cover (1x)

⬢Gently attach the Rear-cable-management-upper on a rear side.

⬢Secure the cover with four M3x5rT screws using a T10 screwdriver.

⬢Turn the printer's front-right side towards you.

⬢Take the extrusion cover (243 mm).

⬢First, insert both ends of the cover into the extrusion.

⬢Now push the extrusion cover towards the center of the extrusion.

Repeat the process of inserting extrusion covers into the extrusions.

⬢Insert the extrusion cover (430 mm) into the extrusion.

⬢Insert the extrusion covers (243 mm) into the extrusions on the left and right sides.

⬢Insert the orange extrusion covers into the extrusions on the left and right sides.

⬢While inserting the extrusion cover, first insert both ends of the cover, then push it towards the center of the frame.

⬢Insert the extrusion covers (95 mm) into the extrusion on the left and right sides.

⬢Insert the extrusion cover (405 mm) into the extrusion.