For the best print results, it is important to keep the Ultimaker 2+ Connect clean while using it. It is advised not to use the Ultimaker 2+ Connect in a room where it can easily be covered with dust, and to remove small pieces of material that might accumulate in the printer. Besides this, there are a few parts in the Ultimaker 2+ Connect that might require more regular cleaning.
At least once a month, clean the Ultimaker 2+ Connect components following the instructions below:
Clean the glass 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. Ensure the build plate is lowered to the bottom of the Z axis. Turn off the printer or ensure that the Ultimaker 2+ Connect cannot start a new print job before removing the build plate.
- Open the build plate clamps at the front, slide the glass build plate forward, and take it out of the printer
- 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
- Dry the build plate with a clean microfiber cloth
- Place the glass 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
Clean the nozzle
While using the Ultimaker 2+ Connect, material can get stuck to the outside of the nozzle and degrade. Although this will not damage your printer, it is recommended to keep 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:
Caution: This procedure requires heating up the nozzle. Be careful and do not touch the nozzle with bare hands. Protective (thermal) gloves are advised. Ensure the Ultimaker 2+ Connect is disconnected from the Digital Factory or made unavailable for new print jobs.
- On the display, navigate to Maintenance, then Set nozzle temperature
- Use the controls to set the target temperature to 150 °C
- Wait for the material on the outside to soften. When the nozzles are hot, carefully remove the material with tweezers
- Lower the nozzle temperature to 0 ºC and wait for the nozzle to cool down
Clean the Bowden tube
Particles in the Bowden tube can impede smooth movement of the filament or mix colors. Clean the Bowden tube at least once a month, or after experiencing an issue with filament grinding. To clean the Bowden tube, it must be disconnected from the print head and feeder.
Caution: Turn off the printer or ensure the Ultimaker 2+ Connect cannot accept new print jobs through the Digital Factory.
- Start by removing the material. Navigate to Materials, then Unload material and remove the spool
- Place the print head in the front-right corner
- Remove the clamp clips from the tube coupling collets at the print head and feeder
- 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 Bowden tube to the print head cable do not have to be removed, you can leave them in place.
- Cut off a small piece of sponge or ball up a piece of tissue
- Insert this 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.
- 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
- 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
- Pull the Bowden tube and tube coupling collet approximately 2 mm upwards. Keep the tube coupling collet up and push the Bowden tube further in
- Secure the tube with the clamp clip
Clean the inside of the printer
Small pieces of material can gather inside the printer. Leaving larger objects on the bottom panel can lead to errors, as they prevent the build plate from homing properly. Remove small particles regularly from the inside of the printer by taking the following steps:
- Navigate to Maintenance, then Move build plate and select the up arrow to raise the build plate all the way up
- Clean the inside of the printer with a microfiber cloth or (handheld) vacuum cleaner. Pay extra attention to the area around the Z limit switch as obstructions here can cause print problems
- Lower the build plate again or simply exit the menu by pressing the X icon in the top-right corner. Before doing so, make sure the printer is clear from objects and hands to prevent them from getting stuck under the build plate
Clean the Air Manager
The Ultimaker 2+ Connect Air Manager is a great asset to keep the printer clean. The components of the Air Manager (the cover and the front enclosure) 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.