¶ 1. Tools:
S2.5 Allen key
¶ 2. Filament Retraction:
¶ Step 1: Raise the Z-Axis
Connect the power supply.
① In the main menu, rotate the knob counterclockwise to the indicated position and press the knob to enter the next menu.
② In the settings menu, rotate the knob clockwise to the indicated position and press the knob to enter the next menu.
③ In the axis movement menu, rotate the knob clockwise to the indicated position and press the knob to enter the next menu.
④ Rotate the knob clockwise to adjust the value to "120mm" to raise the Z-axis to the middle position.
¶ Step 2: Heat the Nozzle
Return to the settings menu, rotate the knob to the "Filament" option, and press the knob to enter the next menu.
In the filament change menu, rotate the knob to the "Extrude" option and press the knob to start the heating process.
The nozzle will automatically heat up to 215°C and begin extrusion. Press the knob to "Stop and Return" when finished.
¶ Step 3: Remove the Filament
Once the nozzle has reached the target temperature, press the handle on the extruder to push the filament forward slightly.
Quickly retract and remove the filament. Follow the sequence in the image provided.
¶ 3. Disassembly Steps:
Note: The images below are for better illustration, taken by disassembling the print head from the entire device.
It is not necessary to remove the entire print head during actual disassembly. Some accessories in the images may be missing, but the steps remain consistent.
¶ Step 1: Turn Off the Device
Before replacing the extruder motor, ensure that the device is turned off and disconnected from the power.
Wait for the print head temperature to cool to room temperature for safe operation.
¶ Step 2: Disconnect Extruder Motor Cable
Disconnect the extruder motor cable.
¶ Step 3: Disassemble Print Head Casing
Use the S2.5 Allen key to loosen the 2 screws (located on the back of the print head) that secure the print head casing.
Since the print head casing and the model cooling fan (FAN0) are integrated, remove the FAN0 cable from the groove before pulling out the cable.
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¶ Step 4: Disassemble Extruder Motor
Use the S2.5 Allen key to loosen the 4 screws that secure the extruder motor and remove the extruder motor.
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¶ 4. Installation Steps:
¶ Step 1: Install Extruder Motor
① Take the new extruder motor, install it in the corresponding position, and take out the screws previously removed from the old extruder motor.
Note: When installing the extruder motor, ensure that the motor's port is oriented towards the left.
② Use the S2.5 Allen key to thread the short screw through the motor ground wire, align one of the screws with the corresponding hole, and pre-lock it.
Then, thread the long screw through the extruder assembly, align three of the screws with the corresponding holes, and pre-lock them.
Finally, ensure all four screws are correctly aligned with the holes and tighten all of them.
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¶ Step 2: Install Print Head Casing
Take out the print head casing and screws previously removed. Insert the model cooling fan cable into the print head adapter board's FAN0 port.
Place the cable in the groove, keeping any excess cable to the side to avoid interference with the fan's rotation.
Use the S2.5 Allen key to tighten the screws by aligning them with the corresponding holes.
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