[Sonic Mini 8K] Checking the Z-axis and Motor

After using your Sonic Mini 8K for a period of time, you may encounter some Z-axis-related issues. The Z-axis can start to get stuck, show abnormal movements or make annoying sounds. If this matches your case, it’s time for you to take some troubleshooting steps. This article will guide you through 3 common methods helping you to verify the condition of your Sonic Mini 8K’s Z-axis and motor.

1. Cleaning the Z-axis

If you're experiencing issues with your Z-axis, start by checking the lead screw for any dirt or debris. 

• If it's dirty or has accumulated grease, use a microfiber cloth to wipe it clean (you can also use alcohol for deeper cleaning). 
• After cleaning, consider lubricating the lead screw. 
• For more detailed instructions, please refer to another article [Sonic Mini 8K] Cleaning the Z-axis

If the Z-axis is still unable to move after cleaning, proceed to the next 2 methods.

2. Reconnect the motor connectors

Checking the motor cable connection on your Sonic Mini 8K is an important step in ensuring that your device is working properly. If the motor cable becomes disconnected, it can cause your printer to stop working altogether. To check the motor cable connection, follow these steps:

Power down and prepare

• Turn off the printer and unplug it
• Place the printer on a flat surface
• Loosen the 4 screws on the bottom case and open it

Identify and check the motor connection

• Locate both ends of the motor connector (as shown below)

• Check if both ends of the motor cable are securely connected. If either end is loose, gently push it back into place

Turn on the printer and test the Z-axis

• Reassemble the printer 
• Plug in the power cord and switch on the printer
• Test the Z-axis to make sure it is working properly

3. Check the motor by turning the Z-axis by hand

If you experience a situation where the Z-axis becomes stuck during printing or if you hear a grinding noise from the motor, it may indicate a problem with the Z-axis mechanism. This issue is often caused by the buildup of dirt, dust, or resin on the Z-axis or even resin that has seeped into the motor, preventing it from moving smoothly.

You can take the following steps to check if the motor is working properly.

Power down and prepare

• Turn off the printer 
• Remove the building plate and resin vat

Checking the motor

• Use 2.5mm Allen wrench to loosen the screws of bearing sleeve and remove the screws

• Carefully push the T-plate downwards until it reaches the bottom of the Z-axis

• Turn the lead screw clockwise and counterclockwise by hand and check if the lead screw turns freely without any jamming

Conclusion

• If the lead screw does not move smoothly, clean the Z-axis and apply lubricants to it
• If the lead screw is stuck and cannot be turned by hand, it may be due to resin seeping into the motor and causing it to become trapped.

Regular maintenance of the Z-axis and lubrication can prevent this issue from occurring.

Contact Support

By following these steps, you can easily check the Z-axis and motor on your device and determine whether they need to be repaired or replaced. If you find any issues, feel free to reach out to Phrozen Support or your Authorized Reseller for further assistance. When contacting Phrozen Support, kindly share a few photos and videos illustrating the issues with the Z-axis and motor. This will greatly facilitate the troubleshooting process.