Z AND XY OFFSET CALIBRATION

Z OFFSET CALIBRATION

The last part of the manual leveling procedure is the Z offset calibration. This ensures that the correct vertical distance between the two nozzles is stored. This procedure can also be done separately.

1. Go to System > Maintenance > Calibration > Calibrate Z offset.
2. Place the calibration card between the second nozzle and build plate.
3. Rotate the button at the front of the Ultimaker 3 until it touches the calibration card and fine-tune it until you feel slight friction/resistance when moving the card.

XY OFFSET CALIBRATION

When a new combination of print cores is installed some calibration is required to align both nozzles. The Ultimaker 3 will automatically detect new combinations and gives a message to do the calibration. This calibration must only be done once; after this, the information is stored on the printer. The AA print core that was installed on receipt of the Ultimaker 3 has already been calibrated with the other AA and BB print core and does not require calibration.

To do the calibration you will need the XY calibration sheet, which you can find in the accessory box or download here. If you need to print it, make sure you print it on an A4 paper at 100% scale.

Note: Ensure 2 print cores and materials are installed before starting the calibration.

To start the calibration:

1. Go to System > Maintenance > Calibration > Calibrate XY offset.
2. The Ultimaker 3 will now print a grid structure on the build plate. Wait until it is finished.
3. Once the Ultimaker 3 has cooled down, remove the glass plate from the printer and place it on the XY calibration sheet. Ensure the printed grid it is exactly placed on the two rectangles on the sheet.
4. Find the aligned lines on the printed X grid and look which number belongs to these lines. Enter this number as the X offset value on your Ultimaker 3.
5. Find the aligned lines on the printed Y grid and look which number belongs to these lines. Enter this number as the Y offset value on your Ultimaker 3.

Note: It is important that the printed XY offset print adheres well to the build plate and shows no signs of under extrusion. If it does, it is recommended to re-do the calibration print.