Tools:
①2mm hex wrench
②Feeler gauge
1. Select the gearwheel icon to enter the Setting interface.
2. Select Maintenance on the Machine tab.
3. Select Make X-Axis Level Up and press Start to begin the process. This will help ensure that both printheads are level because the shared X-axis gantry will be levelled when the procedure completes.
4. A message will appear stating: “The grinding sound produced during this process is normal. Do not be alarmed”.
The shared X-axis gantry should rise to the top bar and level itself when it makes contact at the top of the printer.
5. When the procedure is completed, select the gearwheel icon to enter the Setting interface and press Maintenance on the Machine tab.
6. Select the Offset Calibration.
7. Confirm that all the requirements of the prompt are met and select Start.
8. Begin with steps 1 through 4 of the Calibration Options. Each step contains full instructions for successfully completing its operation.
9. After completing steps 1 through 4, select the “Offset Settings”.
10. If the left and right nozzle offset value difference is lower than or equal to 0.10mm, it indicates that your printer's left and right nozzle height differences are within an acceptable range for best results while printing in Mirror Mode or Duplication Mode.
If the left and right nozzle offset value difference is higher than 0.10mm, it is highly recommended to readjust the height of the left and right hotends to influence the nozzle heights.
11. First, unload any filament in the left and right printheads.
Select “Utilities” > “Filament Loader” > “Unload” to unload any filament in the left and right printheads.
Then, press the "Home" tab and wait for the nozzle’s temperature to cool down to room temperature before proceeding to the next step.
Note: If there is any residual filament debris on the nozzle, please carefully remove it because this could negatively influence the data.
12. Navigate to the Utilities tab, Move Axes tab, and then select “Home All” to return the heated bed platform, printhead gantry, and both printheads to their machine origin positions.
13. Select the Z-axis in the top right corner of the screen, select the 1.0mm Move Steps, then press the up arrow twice to raise the Z-axis gantry by 2mm. The Z coordinate, in blue, should read: Z 2.0
14. Select the “Motor Unlock” icon, located on the lower-right, and the touchscreen will display “The motors have been disabled”. Select “OK”.
Note: After the touchscreen displays “The motors have been disabled”, you can move the printheads and the heated bed platform by hand.
Using the touchscreen arrows to jog the motors or running a print will reactivate the motors.
15. Manually align the center position of the heated bed platform under the X-axis beam, then move the left and right printheads to the center position of the X-axis gantry, and then place the feeler gauge under the left and right printhead, as shown below.
16. The three options in the Move Steps allow you to select the distance of how much an axis will move per arrow press. To prevent damage to the printing surface, it is recommended to select 0.1mm Move Step increment to lower the nozzle slowly.
Press the down arrow to lower the Z-axis gantry until either nozzle makes contact with the feeler gauge, making it difficult to slide out.
In the above example, the left side nozzle has contacted the feeler gauge before the right side. The printhead has been lowered to make the feeler gauge relatively difficult to slide around underneath.
17. If the friction of the left nozzle is larger than that of the right nozzle, it means that the height of the left nozzle is lower than that of the right nozzle, or if the friction of the right nozzle is larger than that of the left nozzle, it means that the height of the right nozzle is lower than the left nozzle.
The following steps will use an example demonstrating that the left nozzle exhibits greater friction than the right nozzle. In this example, the left nozzle will be used as the baseline reference and the right nozzle will be adjusted to match.
Note: If you are experiencing difficulty in setting a sufficient matching nozzle height, it may be helpful to instead raise both nozzles by loosening their respective set screw and fully inserting the respective hotend’s throat tube fully upwards into the printhead before retightening the set screw. Performing this operation for both nozzles may create a relatively equidistant starting point before running the Left and Right Offset procedure and attempting to fine tune adjust.
Steps for Adjusting the Nozzle Height
1) Press the “Motor Unlock” icon to freely position the printheads.
Carefully move the right extruder slightly out of the way. (It is important that the feeler gauge card is not moved out of position for this process.)
2) For the left printhead, use a 2mm hex wrench to loosen the set screw used to clamp the throat tube of the hotend assembly. With the set screw loosened, use your hand to assist the hotend/nozzle downward to ensure that the nozzle is fully resting onto the feeler gauge, and retighten the set screw.
3) On the touchscreen, press the 1.0mm Move Steps button to set a new travel distance. Press the blue UP arrow twice to raise the printhead gantry 2mm. This should allow both nozzles clearance for safe travel above the build surface without disturbing the feeler gauge card’s position.
4) Press the “Motor Unlock” icon to freely position the printheads.
Carefully move the left printhead out of the way and position the right printhead’s nozzle above left nozzle’s initial position above the feeler gauge card.
5) On the touchscreen, press the blue Down arrow twice to lower the printhead gantry 2mm. This will position the right printhead at the exact same elevation as the left when its nozzle was resting on the feeler gauge.
6) On the right printhead, use a 2mm hex wrench to loosen the set screw used to clamp the throat tube of the hotend assembly. With the set screw loosened, use your hand to assist the hotend/nozzle downward to ensure that the nozzle is fully resting onto the feeler gauge, and retighten the set screw.
7) On the touchscreen, press the blue Up arrow once to raise the printhead gantry 1mm to free the feeler gauge card from the nozzle.
Remove the card from the printing surface.
8) At the touchscreen, select the gearwheel icon for Setting and select “Offset Calibration” in the “Maintenance”. and run the Offset Calibration for only the left and right nozzle again.
Do not load filament into either side for the next steps.
9) When the left nozzle and right nozzle calibration wizard is finished, enter the Offset Settings to compare the left and right nozzle offset value. If the left and right nozzle offset value difference is lower than or equal to 0.10mm, it indicates that their heights have been adjusted successfully.
If the left and right nozzle offset value difference is higher than 0.10mm, it is highly recommended to return to Step 12 to readjust the left and right nozzle height until the difference is less than or equal to 0.10mm.
[12.006-EN.2.0.20230921-E2-Calibration for Duplication and Mirror Mode Printing]
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