[Sonic Mini 8K S] Replacing the Z-axis

The Z-axis is an essential component that enables the printer to move the building plate up and down, allowing for precise layering during the printing process. Over time, the Z-axis may become worn or damaged, leading to issues such as layer shifting or uneven prints. 

In this guide, we will guide you through important steps to replace the Z-axis of your Sonic Mini 8K S, ensuring that your printer is operating at its best and producing high-quality prints.

1. Removing the Old Z-axis

Remove the bottom case

• Turn off the printer and unplug it
• Remove the UV cover, resin vat, and building plate
• Carefully lay down your printer
• Loosen the 4 screws on the bottom case and open it

• Unplug the LED connector and Fan connector, then remove the bottom case

Disconnect the LCD ribbon cable and the motor cable

• Locate the LCD ribbon which connects the LCD screen and the mainboard
• Open the cable clip and detach the LCD ribbon cable (see ① ② below)
• Locate the motor cable which connects the motor and the mainboard
• Unplug the motor cable from the motor

Remove the old Z-axis

• Turn the printer upright 
• Loosen the 2 screws on the platform that is attached to the motor

• Turn the Z-axis counterclockwise until it becomes loose while holding the T-plate with the other hand
• Take the Z-axis out of the printer

2. Installing the New Z-axis

Install the new Z-axis

• Put the new Z-axis in its position inside the printer
• Turn the new Z-axis clockwise to screw in the bearing sleeve
• Tighten the 2 screws on the platform that is attached to the motor

Reassemble the printer

• Attach the motor connector and LCD ribbon cable
• Attach the LED connector and fan connector to the mainboard
• Install the bottom case
• Turn the printer upright

Verify the new Z-axis functionality

• Plug in the power cord and switch on the printer
• Run Z Axis Calibration to verify if the Z-axis works normally

Contact Support

By following the above instruction, you can easily replace the Z-axis of your Sonic Mini 8K S printerIf you find any issues, feel free to reach out to Phrozen Support or your Authorized Reseller for further assistance. When contacting Phrozen Support, kindly send some photos or videos illustrating the issue.