Clean the printer

For the best print results, it is important to keep the Ultimaker S5 clean while using it. It is advised to not use the Ultimaker S5 in a room where it can easily be covered with dust, and to remove small pieces of material that might be in the printer. Besides this, there are a few parts in the Ultimaker S5 that might require more regular cleaning.

Clean the glass/aluminum build plate

After printing, there might be print leftovers or excess glue stuck to the build plate. This can cause an uneven print surface. Potential sources of contamination are dust or fatty substances such as finger grease. Removing a print may also reduce the adhesion quality of a layer of glue. It is advised to regularly clean the build plate and reapply glue (if applicable).

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

⚠Caution: Always make sure that the build plate has cooled down and is lowered to the bottom of the Z axis.

  1. Open the build plate clamps at the front, slide the glass or aluminum build plate forward, and take it out of the printer.
  2. Use lukewarm water and a non-abrasive sponge to clean the build plate and to remove any adhesives. If necessary, some detergent can be used to remove adhesives, or alcohol gel can be used to get rid of any fatty substances.
  3. Dry the build plate with a clean microfiber cloth.
  4. Place the glass or aluminum build plate on the heated bed with the warning sticker facing upwards. Ensure that it snaps into the build plate clamps at the back and close the build plate clamps at the front to secure it.

⚠Caution: Make sure to thoroughly dry the glass plate before placing it back in the printer.

Open the build plate clamps
Remove the build plate from the printer
Use lukewarm water and a non-abrasive sponge to clean the build plate
Dry the build plate with a clean microfiber cloth

Clean the glass components

All glass components of the printer (the glass doors and touchscreen) should be cleaned regularly to remove dust or fingerprints. They can be cleaned by using a dry, or if necessary, a somewhat moist microfiber cloth.

Clean the doors with a microfiber cloth
Clean the touchscreen with a microfiber cloth

Clean the nozzles

While using the Ultimaker S5, material can get stuck to the outside of the nozzles and degrade. Although this will not damage your printer, it is recommended keep the nozzles clean in order to achieve the best print results.

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

  1. On the Ultimaker S5, navigate to the configuration menu, select print core 1, then click on the icon in the top-right corner and select Set temperature.
  2. Use the controls to set the target temperature to 150 °C. Repeat this for print core 2 and make sure this print core is lowered.
  3. Wait for the material on the outside to get soft. When the nozzles are hot, carefully remove the material with tweezers.

⚠Caution: During this procedure do not touch the nozzles and be careful while cleaning them as they will become hot.

⚠Caution: The nozzle cover is fragile and has a sealing function. Be careful not to damage the nozzle cover when using tweezers.

Carefully remove excess material with tweezers

✔ Tip: Material may have accumulated higher up on the outside of the nozzle, above the nozzle cover. Check if this is the case by opening the print head fan bracket. To ensure the print head can close smoothly, this material should be removed using tweezers, as described above.

Clean the Bowden tubes

Particles in the Bowden tubes can impede smooth movement of the filament, or mix colors. Clean the Bowden tubes at least once a month, or after experiencing an issue with filament grinding. To clean the Bowden tubes, they must first be removed from the printer.

  1. Start by removing the material. Go to the configuration menu, select the material you want to remove and the Unload. After this, turn off the printer.
  2. Place the print head in the front-right corner.
  3. Use your fingernail to remove the clamp clips from the tube coupling collets at the print head and feeders.
  4. Press down on the tube coupling collet in the print head and at the same time, pull the Bowden tube upwards, out of the print head. Repeat these steps for the feeder.

✔ Tip: The cable clips that hold the second Bowden tube to the print head cable do not have to be removed, you can leave them in place.

  1. Cut off a small piece of sponge or ball up a piece of tissue.
  2. Insert this into the feeder end of the Bowden tube and push it all the way through the tube with a length of filament. Do this for both Bowden tubes, using a clean piece of sponge or tissue for each.
  3. Insert the Bowden tube into the feeder by pressing down on the tube coupling collet in the feeder and pushing the Bowden tube all the way in. Secure the tube with the clamp clip. Repeat this for the other Bowden tube.
  4. Insert the Bowden tube into the print head by pressing down on the tube coupling collet in the print head and pushing the Bowden tube all the way in. Secure the tube with the clamp clip. Repeat this for the other Bowden tube.

Use your fingernail to remove the clamp clip from the tube coupling collet of the feeder
Insert a small piece of sponge into the feeder end of the Bowden tube and push it all the way through the tube with a length of filament

✔ Tip: To clean the tube most efficiently, make sure the sponge or ball of tissue is a tight fit inside the Bowden tube. Note that if it is too big it will be difficult to push through.

✔ Tip: Pay attention to the orientation of the first Bowden tube that was completely removed from the printer. One side is chamfered for easier entry of the filament; this side should be inserted into the feeder.

Inside of the printer

Small pieces of material can gather inside the printer, such as priming blobs. Remove these regularly from the inside of the printer by taking the following steps:

  1. Raise the build plate by navigating to Configuration > Build plate and select Raise.
  2. Clean the inside of the printer with a microfiber cloth or vacuum cleaner. Pay extra attention to the area around the Z limit switch, as obstructions here can cause print problems.

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

Clean the inside of the printer with a microfiber cloth
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