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6.11 Clean the feeders
The feeders forward filament to the print head. To make sure that exactly the right amount of material is extruded, it is
important that the feeder gears can turn smoothly.
After many hours of printing, or when material has been ground down, there is a chance that there are small filament
particles in the feeders. It is recommended to clean the inside of the feeders after three months. In order to do this, the
feeders have to be removed from the printer.
The following steps need to be performed for both feeder 1 and feeder 2:
1. Start by removing the material. Go to the configuration menu, select the material you want to remove and then
Unload. After this, turn off the printer and remove the power cable.
2. Remove the clamp clip from the feeder-end of the Bowden tube, press down on the tube coupling collet and pull the
Bowden tube upwards out of the feeder. Next, remove the tube coupling collet.
3. Reduce the tension of the feeder by turning the bolt in the top of the feeder with the hex screwdriver, until the
indicator is completely at the top.
4. Use the hex screwdriver to loosen the four bolts of the feeder housing.
5. Carefully pull the front part of the feeder away from the printer and put it aside.
Be careful not to lose the ring that is located at the bottom of the feeder. If it falls out, place it back in the
feeder housing with the widest side at the top.
6. Use a small brush to gently clean all filament particles from the knurled wheel, the flow sensor axis, and the inside
of the feeder housing.
7. Place the front part over the feeder again and firmly push it into place. Insert the four bolts and tighten them in a
cross pattern, starting in the top-left corner.
8. Insert the tube coupling collet into the feeder and push the Bowden tube all the way in. Secure the tube with the
clamp clip.
9. Reset the tension of the feeder by turning the bolt in the top of the feeder, until the indicator is at the middle mark.
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