¶ 1.Failure phenomenon
After printing ABS, replace other filament and cannot feed.
¶ 2.Cause of failure
- 2.1 The filament are blocked in front shell of the extrusion kit.
- 2.2 The filament are blocked at the Teflon pipe under the extrusion kit.
- 2.3 The filament are blocked at the nozzle throat.
¶ 3.Troubleshooting and solution
3.1 Remove the motor cover and remove the three screws securing the extrusion kit.
3.2 Remove the extrusion motor kit (be careful not to tear the motor wire) and remove the two screws that hold the extrusion kit.
3.3 Remove the extrusion kit, remove the front shell of the extrusion kit, check if there are any filament blocked, clean it with pliers, and put it back in the order of disassembly. If there are no filaments, continue to investigate.
3.4 Remove the blue Teflon tube, check if there are any filament in the blue Teflon tube. If there is a hot air gun tool, blow hot air to the Teflon tube to clean the filaments. After cleaning, install them in the order of disassembly. If there are no filaments, continue to investigate.
3.5 If the Teflon tube cannot be removed, there will be filament in the gap between the Teflon tube and the heat sink. Refer to the video of replacing the Hotend Kit, remove the Hotend Kit (the terminal can be removed), loosen the bolt that fixes the heat sink, vertically remove the heat sink, clean the filaments, and install all accessories in the order of disassembly.
