Main components of the Ultimaker 3

Get to know the main components of your Ultimaker 3 or Ultimaker 3 Extended. Knowing what's what will help you understand your printer and facilitate your onboarding process.

Tip: The main components of the Ultimaker 3 and Ultimaker 3 Extended are the same. The only difference between the two models is 10 cm (4 in) in height.


1. Build plate The Ultimaker 3 has a heated build platform with a glass build plate. The build plate (or 'Z-stage') moves down layer by layer during printing.
2. Print head The print head moves in the X and Y directions during printing and extrudes filament from the nozzles. It contains two print cores that are easily swappable.
3. Bowden tubes The Bowden tubes guide the filament from the feeders to the print head.
4. Print head cable The print head cable ensures communication between the electronics and the print head.
5. Glass build plate The glass build plate is the print surface. It is recommended to apply a thin layer of glue for optimal adhesion.
6. Button Use the rotate-and-click button to navigate through the menu and select actions.
7. Display The small but efficient display shows several menu options and provides information about your print.
8. USB port Insert a USB device for offline printing or to update the firmware.
9. Feeder 2 The geared feeders reliably feed material to the print head. Feeder 2 guides material 2 to the print core in slot 2 of the print head.
10. Feeder 1 Feeder 1 guides material 1 to the print core in slot 1 of the print head.
11. Ethernet port Connect your printer to the network by inserting an Ethernet cable into this port.
12. Material 2 Material 2 is placed on the spool holder. It is fed through feeder 2 to the print core in slot 2 in the print head.
13. Material 1 Material 1 is placed on the filament guide. It is fed through feeder 1 to the print core in slot 1 in the print head.
14. Filament guide The filament guide is placed on the back of the spool holder. Guide material 1 through the hole to prevent entangling of the materials.
15. Power cable The cable of the power adapter is connected to the back of the printer. Ensure that the flat side of the power cable is facing down. Use the switch next to it to power the printer on or off.
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