[Sonic Mini 8K] Replacing the Z-axis

Welcome to this guide on replacing the Z-axis for Sonic Mini 8K. 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 walk you through the steps to replace the Z-axis on your Sonic Mini 8K, ensuring that your printer is operating at its best and producing high-quality prints.

To learn how to replace the Z-axis in Sonic Mini 8K, watch our instructional video: Sonic Mini 8K - Z-axis replacement

Removing the Old Z-axis

1. Turn off the printer and disconnect the power cable
2. Remove the UV cover, building plate, and resin vat
3. Unscrew and remove the plastic plate located on top

4. Loosen the 8 screws on the T-plate

5. Turn the lead screw counterclockwise to take the T-plate out
6. Secure the sliding guide with tape to prevent it from moving during the replacement process
7. Carefully lay the printer down on a flat surface 
8. Loosen the 4 screws on the bottom case, and then open the case

9. Gently unplug the LED connector and remove the bottom case
10. Loosen the 2 screws on the platform that is attached to the motor
11. Take the Z-axis out of the printer
12. Loosen the 2 screws that secure the shock absorber

Installing the New Z-axis

1. Tighten the new shock absorber and secure the motor in place
2. Put the Z-axis in position inside the printer
3. Tighten the 2 screws on the platform that is attached to the motor
4. If you need to replace the slide rail, loosen the 5 screws located on the rail

5. Attach the LED connector to the mainboard and then reinstall the bottom case securely
6. Remove the tape
7. Put the T-plate and turn the new lead screw clockwise to secure it in place
8. Install the plastic plate located on top
9. Install the building plate, resin vat, UV cover
10. Done