To replace the printer’s hot end assembly, please follow these steps:
- Disassemble the Extruder Head: Carefully remove the front and rear covers of the extruder head.
- Remove the Heat Sink: Locate the set screw at the back of the heat sink component and unscrew it.
- Remove the Heater Cartridge and Thermistor: After removing the set screw, take out the heater cartridge and thermistor from the extruder head.
- Detach the Hot End: Once the heater cartridge and thermistor are removed, the hot end assembly can be taken off.
- Install the New Hot End: Insert the thermistor and heater cartridge of the new hot end assembly into the extruder head.
- Secure the New Assembly: Tighten the set screw to ensure the new thermistor and heater cartridge are firmly in place.
- Reattach the Nozzle: Plug the nozzle of the hot end back into the heat sink and tighten the set screw again.
- Reassemble the Extruder Head: Finally, put the front and rear covers back into position.
- Complete the Replacement: After all parts are installed, the hot end assembly replacement is complete.
To replace the extruder, please follow these steps:
- Disassemble the Existing Extruder: First, locate the two screws on either side of the extruder and unscrew them.
- Remove the Filament Runout Sensor: Next, unscrew the screw on the filament runout sensor and remove it from the extruder.
- Prepare the New Extruder: Get the new extruder ready for installation.
- Install the Filament Runout Sensor: Properly install the filament runout sensor on the new extruder.
- Mount the New Extruder: Position the new extruder in the correct place and ensure it is correctly aligned with the rest of the machine.
- Tighten the Screws: Finally, screw in the two screws on either side of the extruder to securely fix the new extruder in place.
If during the 3D printing process you find that the distance between the print platform and the nozzle is still too large, affecting print quality, you can adjust the Z-axis limit to resolve this issue by following these steps:
- Locate the Z-Axis Limit: Identify the Z-axis limit mechanism on the printer.
- Loosen the T-Nut: Loosen the T-nut on the Z-axis limit to facilitate adjustment.
- Adjust the Z-Axis Height: Manually adjust the position of the Z-axis to achieve the desired print height as per your printing requirements.
- Secure the T-Nut: After adjusting to the proper position, retighten the T-nut to ensure the Z-axis limit is securely fixed in place.
- Complete the Adjustment: Once the above steps are completed, the adjustment of the Z-axis limit is finished, and you can continue with your printing tasks.