The procedure that follows explains how to load the filament through the feed path.
Estimated time: 30 minutes
A filament feed path upgrade kit is available to purchase directly from AON3D. The benefits of the filament feed path upgrade kit lowers the friction between the filament and the PTFE tube, which allows the material to be fed to the extruder with less restrictions. This upgrade also increases the bending radii of the feed path, which reduces the risk of the filament breaking inside the feed tube. Please reach out to our Customer Success team at email@example.com for details.
Make sure spool orientation is placed as such that the filament is looped and fed from the back of the spool once installed. Refer to illustration below.
Make sure that filament is unrolled from spool without any tangles. Filament tangles will cause extruder to jam and cause print failure.
If the feed path upgrade kit is installed on the machine, some effort might be needed to feed the filament through the sensor found in the filament runout detector. If a restriction is met, carefully pull the filament out and straighten it. Make sure the filament has a sharp 45° angle cut on the end. It may take several attempts, but this process requires minimal force.
Do not touch the hot ends when toolhead heaters are active. Temperatures in the hot ends range from 200°C-450°C (390°F-840°F) and will result in thermal injury (burns) to personnel.
When facing the front of the machine:
• The T0 (toolhead 0) is found on the left-hand side of the X-axis linear rail,
• The T1 (toolhead 1) is found on the right-hand side of the X-axis linear rail.
Preheat the hot ends to the extrusion temperature for the chosen material using the user interface (touchscreen) as follows:
With the user interface (touchscreen), place T0 and T1 at the center of the X and Y axes for ease of access to help load extruders.
Do not force the filament through the assembly. The PTFE guide tube (found between the extruder and the heater block) will get damaged and create a restriction in the feed path.
If a restriction is felt when the filament is inserted, remove and straighten it. Make sure the filament has a sharp 45° angle cut on the end. It may take several tries to insert the filament, but this process should require minimal force.
If a restriction is encountered as filament first enters the extruder body, engage and disengage the extruder gears and carefully push the filament through the extruder. This will help line up the end of the filament between the drive gears.
If the filament passed through the extruder, but will not feed into the PTFE guide tube, rotate the filament above the extruder to change the angle of approach when inserting the filament into the PTFE guide tube. Make sure filament is straight and that the end is cut at a 45° angle.
Turn off the hot end heater(s) if the machine is not ready for operation. Leaving the hot end heater(s) on for extended periods of time without extruding can burn the polymer filament and cause clogs in the nozzle(s). The heater timeout feature can be enabled to automatically turn off the hot end after a period of inactivity.