¶ Code meaning
Filament feeding abnormality (tangling abnormality triggered)
¶ Possible Causes
- Filament diameter is too large, causing the filament to jam in the feed channel.
- Filament is tangled.
- Obstruction or issue in the CANVAS feed channel.
- Gearbox jammed
¶ Tools Required for Troubleshooting
- Digital caliper
- 2.0 mm hex screwdriver
- 2.5 mm hex screwdriver
¶ Troubleshooting Steps
¶ 1. Inspect the Filament
a. Check whether the filament is tangled.
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If tangled, hold the crossed section of the filament and thread the filament end through the loop. Once resolved, reload the filament into the printer.
To prevent future tangles, always hold the filament end until it is fully inserted into the CANVAS feed channel
b. Measure the filament diameter with a digital caliper. If no caliper is available, try a different spool of filament for testing.
How to check filament diameter:
Cut or use a 1-meter length of filament. Measure the diameter at five different points. The diameter should stay within the manufacturer’s specified tolerance. For example, Elegoo PLA tolerance is typically ±0.02 mm.
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If the filament diameter is within tolerance, proceed to Step 2.
¶ 2.Confirm the position where the filament is stuck.
a. Gently push the PTFE tube to release the filament.
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b. Remove the filament completely.
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c. Re-insert the filament into the CANVAS channel and check whether it feeds smoothly into the PTFE tube.
- If the filament cannot pass through the CANVAS channel, proceed to Step 3.
- If the filament passes through the CANVAS channel but fails to enter the tool head or triggers a “feed failure” after selecting Load Filament on the touchscreen, proceed to Steps 4 and 5.
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¶ 3.Reinstall the Feeder motor
a. Refer to the following video (00:00–01:19) to open the CANVAS enclosure:
https://www.youtube.com/watch?v=OLclADMW7Tc
b. Ensure the notches on the top of the feed/retract assembly are properly aligned with each other, and that the extruder motor wiring is correctly seated in the retaining clips (as shown in the reference image).
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¶ 3. Adjust Extruder Gear Tension
a. Power off the printer and unplug the power cord.
b. Using a 2.0 mm hex screwdriver, loosen the two screws at the marked locations. remove the 4-in-1 hub
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c. Open the tool head Front Cover
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d. Disconnect the model cooling fan connector.
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e. Using a 2.5 mm hex screwdriver, remove the screws securing the hotend.
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f. Pull the hotend downward carefully without disconnecting its wiring.
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g. Insert a piece of filament into the marked guide hole.
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h. On the touchscreen, go to Control → Prepare, then press the ▽ button to extrude filament.
Do not use the Load/Unload Filament function in the Filament menu. This will trigger the tool head homing sequence, which may damage the hotend and PEI build plate since the hotend is currently unsecured.
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i. Check whether the filament is successfully extruded from the hole below the gearbox.
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j. If the gears cannot push the filament, first try increasing spring tension: remove the screw at the marked location and detach the tool head frame.
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k. Locate the spring tension adjustment screw. Tighten it by turning counterclockwise to increase pressure on the drive gears.
If increasing gearbox tension does not resolve the issue, the filament may be jammed inside the gearbox. Proceed to Step 4.
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¶ 4.Inspect the Gearbox Interior
a. Power off the printer and unplug the power cord.
b. Disconnect the two connectors at the marked positions.
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c. Remove the two screws securing the hotend.
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d. Remove the two screws securing the five-way bracket.
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e. Remove the screws on both sides of the gearbox.
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f. Remove the screw holding the cutter and spring, then take out the spring and cutter.
Please be careful not to cut your fingers when removing the blade.
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g. Remove the three screws at the bottom and detach the gearbox rear cover.
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h. Remove the gears. If difficult to remove, first loosen the screw at the upper-left corner.
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i. Check the marked areas for filament debris or fragments that may obstruct filament loading.
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After inspection, do not fully reassemble the gearbox yet. Insert a piece of filament and manually rotate the gears to verify that the gearbox can properly extrude the filament.
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If the issue still persists, please contact the technical support team. Technical support email: 3dp@elegoo.com