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

Welcome to this guide on replacing the Z-axis for Sonic Mini 8K S. 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 S, 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 S, watch the instructional video:

Removing the Old Z-axis

1. Turn off the printer and disconnect the power cable
2. Remove the cover lid, building plate, and resin vat
3. Carefully lay the printer down on a flat surface 
4. Loosen the 4 screws on the bottom case, and then open the case

5. Unplug the LED connector and fan connector and put the bottom case aside

6. To disconnect the LCD ribbon cable, open the cable clip and detach it (see the picture ① ② below)
7. Unplug the motor connector

8. Loosen the 2 screws on the platform that is attached to the motor

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

Installing the New Z-axis

1. Put the new Z-axis in position inside the printer
2. Turn the new Z-axis clockwise to screw in the bearing sleeve
3. Tighten the 2 screws on the platform that is attached to the motor
4. Attach the motor connector and LCD ribbon cable
5. Attach the LED connector and fan connector to the mainboard
6. Install the bottom case
7. Turn the printer upright