Clean the feeders on the Ultimaker 3

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. In addition to blowing out the particles once a month, it is recommended to also clean the inside of the feeders after one year of printing. In order to do this, the feeders have to be removed from the printer.

Caution: Before you start, turn off the printer or ensure it is disabled in the Ultimaker Digital Factory to prevent new print jobs from starting remotely.

The following steps need to be performed for both feeder 1 and feeder 2:

Preparation Cleaning Feeder gear Reinstallation

Prepare the printer for maintenance by removing the materials and feeders:

First, unload both materials. Navigate to Material/PrintCore - Material [x] - Unload. Do this for both spools and turn off the printer when both materials are removed.

Next, remove the feeders from the printer. Take the following steps for each feeder:

  1. Remove the clamp clip from the top of the feeder housing.
  2. Press down on the white tube coupling collet while pulling the Bowden tube upwards.
  3. Reduce the tension of the feeder by turning the bolt in the top of the feeder, until the indicator is all the way at the top.
  4. Use the hex screwdriver to remove the two bolts that hold the feeder to the back panel.
UM3-Remove-Bowden-tube-feeder.jpg Unscrew_Feeder_1.jpg Unscrew_Feeder_2.jpg
Remove the Bowden tube Reduce feeder tension Remove the feeder

Now that the maintenance action is complete, you can turn on the printer again. Reload your material(s) by navigating to Material/PrintCore - Material [x] - Load and follow the steps on the display.

Note: It is also recommended to check and possibly replace the Bowden tubes after one year. Before reinserting the tubes into the feeders, follow the instructions for checking the Bowden tubes.

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