¶ 1. Tools:
S2.5 Allen key
¶ 2. Filament Retraction:
¶ Step 1: Raise the Z-Axis
Power on the printer, go to the main menu, click on "Settings" ➞ "Move" select "50mm" as the unit, and click the "Z+ Up" to raise the Z-axis to the middle height.
¶ Step 2: Heat the Nozzle
Return to the main menu, click on "Tools" icon ➞ "Filament" icon and finally click "Extrude."
The nozzle will automatically heat up to 210°C.
¶ Step 3: Remove the Consumable
Once the nozzle reaches the target temperature, you could press the handle on the extruder to push a small amount of filament, and then quickly pull out the filament.
Follow the steps in the figure below for sequential operation.Using the Kobra 2 Max as an example.
¶ 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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