The lead screw is connected to the Z motor and controls the movements of the Z stage. To ensure smooth movement of the Z stage, it is recommended to periodically re-apply grease to the lead screw.
A tube of grease was included in the accessory box of your Ultimaker 2+ or Ultimaker 2 Extended+.
- Make sure that the build plate is positioned at the bottom of the Ultimaker 2+.
- For the best results, first, wipe off as much of the old grease as possible. Dust and other particles may have accumulated in the grease. Use a cloth or paper towel.
- Apply a small amount of new grease to the lead screw of the Z motor.
- Move the build plate up and down to evenly distribute the grease. This can be done manually, or via the menu (Maintenance - Advanced - Raise/Lower build plate).
Note: Never use the grease on the smooth axles of the Ultimaker 2+. This will affect the performance of your printer. If you have done so accidentally, make sure to thoroughly clean the shafts before applying the oil for relubrication.
Tip: The image above shows Magnalube grease, which has a green color. Ultimaker recently switched to a different brand of grease (Eurol). Both grease types can be used for maintenance of your Ultimaker 2+ or Ultimaker 2 Extended+. When switching between grease types, it is recommended to clean the lead screw first, as described in step 2 of the instructions above.