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

Welcome to this guide on replacing the Z-axis for Sonic Mega 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 Mega 8K S, ensuring that your printer is operating at its best and producing high-quality prints.

Removing the Old Z-axis

1. Turn off the printer and disconnect the power cable
2. Remove the rear case by loosening the 12 screws (see below pic)

3. Slide off and remove the rear case with doors and put it aside
4. Carefully lay down the printer
5. Remove the 2 screws of upper bearing

6. Loosen the upper screw of the coupling

7. Remove the old ball screw

Installing the New Z-axis

1. Place the new ball screw in position on the column
2. If you need to replace the slide rail, loosen the screws along on the rail
3. Tighten the upper screw of the coupling to secure the ball screw
4. Tighten the screws of the upper bearing
5. Tighten the 12 screws of the metal plate
6. Tighten the screws of the T-plate’s arm
7. Raise the printer back to its original position
8. Install the rear case back in place
9. Done