Clean the printer

For the best print results, it is important to keep the Ultimaker 2+ clean while using it. It is not advised to use the Ultimaker 2+ in a room where it can easily be covered with dust. It is also important to regularly remove small pieces of material that might be in the printer. Some parts of the Ultimaker 2+ might require more regular cleaning.

Glass plate

After printing, there might be excess glue stuck to the glass plate, which can cause an uneven print surface. Alternatively, removing a print may reduce the adhesion quality of the layer of glue. Therefore it is advised to regularly clean the glass plate and re-apply glue.

Before starting a new print, always check the surface of the glass plate. At least once a month, clean the plate thoroughly by following these steps:

  1. Manually position the build plate at the bottom Ultimaker 2+.
  2. Remove the glass plate from the build plate.
  3. Clean the glass plate using lukewarm water and a sponge to remove any glue layers. If necessary, you can also use some soap or detergent.
  4. Dry the glass plate with a clean cloth.
  5. Place the glass plate back onto the build plate and close the build plate clamps at the front to secure it in place.

Removing the glass plate
Cleaning the glass plate

Nozzle

While using the Ultimaker 2+, material can accumulate around the nozzle. Although this will not damage your printer, it is recommended to try keeping the nozzle clean, in order to achieve the best print results.

Before starting a new print, always check the nozzle. At least once a month, remove the plastic from the outside of the nozzle by taking the following steps:

  1. Navigate to Maintenance > Advanced > Heatup nozzle and rotate the button to set the temperature to 150 °C.
  2. When the nozzle is hot, carefully remove the material with tweezers.

⚠ Caution: Do not touch the nozzle and be careful while cleaning it as it will become hot.

Heat up nozzle to 150ºC
Remove the material from the nozzle

Feeder and Bowden tube

After extended use, or when material has been ground down by the feeder gears, small filament particles can accumulate in the feeder. These can end up in the Bowden tube or nozzle, which can impact print quality.

Clean the feeder and Bowden tube at least once a month, or after experiencing an issue with filament grinding.

Clean the feeder

  1. On the Ultimaker 2+, navigate to Material > Change. Remove the filament from the feeder and turn off the printer.
  2. Blow into the feeder to get the filament particles out. If necessary, use an air compressor.

Change material
Clean the feeder

Clean the Bowden tube

If the particles are already stuck in the Bowden tube, clean these as well. To do so, the Bowden tubes have to be removed from the printer.

  1. On the Ultimaker 2+, navigate to Material > Change. Remove the filament from the feeder and turn off the printer.
  2. Place the print head in the front-right corner and remove the clamp clips from the tube coupling collets at the print head and feeder.
  3. Press down on the tube coupling collet in the print head and pull the Bowden tube out. Repeat this for the feeder.
  4. Cut off a small piece of sponge or roll a piece of tissue paper into a small ball. Insert it into the feeder end of the Bowden tube and push it all the way through the tube with a length of filament.
  5. Insert the Bowden tube into the feeder by pressing down on the tube coupling collet and pushing the Bowden tube all the way in. Secure the Bowden tube with the clamp clip.
  6. Insert the Bowden tube into the print head in the same way.
  7. Let go of the tube coupling collet and gently pull the Bowden tube, along with the tube coupling collet, approximately 2 mm upwards. Hold the tube coupling collet up with your fingernail and push the Bowden tube down again.
  8. Place the clamp clip around the tube coupling collet to secure the Bowden tube.

Insert the Bowden tube into the print head
Inserting a piece of sponge

Inside of the printer

Small pieces of material can gather inside the printer, including the initial extrusions. Remove these from the inside of the printer with a cloth or vacuum cleaner. Pay extra attention to the area around the Z limit switch.

⚠ Caution: Leaving larger objects on the bottom panel can lead to errors, as they can obstruct the build plate when homing.

Clean the inside of the printer
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