If you are having trouble with loading filament in your hot end, try the following steps to troubleshoot. If you can confirm that the filament is feeding properly into the hot end but nothing is extruding, please check out our troubleshooting tips for "Clogged Nozzle" instead.
The filament has a very specific path way it needs to follow in order to pass thru the extruder and exit out of the nozzle of the hot end. The most common issue for not being able to load filament is usually a result of having a curved end of the filament you are feeding.
Ideal Preparation of Filament End
It is best practice to make sure the end of the filament you are feeding into the extruder meet the following criteria:
Please ensure that the filament end you are feeding into the extruder meets the above criteria.
If the issue persists, we should look into the drive mechanisms of the extruder.
Inspect Extruder Drive Components
The extruder drive gear is attached to the extruder motor, this is the component that grips onto the filament (with pressure from the extruder idler) and drives it downwards thru the hot end. If it is not in optimal condition, extrusion or feeding of filament will not behave properly.
Some common issues that may occur with the extruder drive gear:
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