¶ Problem Description
The filament is not extruded from the nozzle.
¶ Possible Cause
- The extruder is clogged.
- The hot end is clogged.
- The nozzle is clogged.
- The buckle of the extruder gear gets loose, making it unable to feed in the filament.
- The set screw gets loose.
- The extruder cord gets loose.
- The extruder stepper motor stalls.
As presented above, many causes, sometimes even occurring simultaneously, could result in failed filament extrusion. Therefore, it might be necessary to try more than one solution to resolve the problem thoroughly.
To minimize the time and efforts required, we have organized the solutions by difficulty and suggest that you troubleshoot in the following order. Alternatively, you may also try any of the solutions in any order based on your own assessment of the actual situation.
¶ Solution
¶ Step 1 Confirm: cloggings, or extruder issues?
- On the Touchscreen, tap to heat the not-extruding nozzle to the normal printing temperature for the loaded filament.
- When the heating is complete, tap Load and manually push the filament downwards.
a. If the filament still cannot be extruded, it might be a clogging-related issue. Proceed to Step 2.
b. If the filament can be extruded successfully, it might be an extruder-related issue. Proceed to Step 3.
¶ Step 2 Confirm: where did the clogging occur?
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Open the front cover of the module and press the extruder buckle to expand the dual-gear extruder.
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Observe whether there are any bent or entangled filaments around or inside the extruder gears.
a. If you find any, refer to Extruder clogging to further troubleshoot.
b. If there are none, refer to Nozzle clogging or Hot end clogging to further troubleshoot.
As cloggings can occur in different places concurrently, you might need to troubleshoot all three possible-to-clog parts before the cloggings are thoroughly solved.
If you have cleaned all the clogs but the extrusion problem persists, proceed to Step 3 to further troubleshoot extruder-related issues.
¶ Step 3 Confirm: is the extruder buckle loose?
On the Touchscreen, tap Load and simultaneously push the extruder buckle inwards to apply extra extruding force on the filament.
- If the filament can be successfully extruded, refer to The extruder buckle of the Dual Extrusion Module gets loose to further troubleshoot.
- If the filament still cannot be extruded, proceed to Step 4.
¶ Step 4 Confirm: what's wrong inside the extruder?
On the Touchscreen, tap Load and listen carefully to the current noise of the extruder.
- If there is no current noise, the extruder cord might have been loose.
- If the current noise is abnormal, such as clicking, an extruder stall might occur.
- If the current noise is normal, the set screw on the extruder might have been loose.
If you are unsure about what normal current noise sounds like, compare it to that of a properly-extruding extruder.
For case 1， in the case of disassembling the dual extruder, observe whether the cable of the stepper motor is damaged or whether the connector is firm.
For case 2, please submit a ticket here. Our Support team will assist you in resolving the issue.
For case 3, refer to The set screw of the extruder gets loose to further troubleshoot.
If you have tried all the above solutions and the filament still cannot be extruded, please submit a ticket here. Our Support team will assist you in resolving the issue.