Anycubic Chiron Z-axis top bearing support

thingiverse

Anycubic Chiron Z-axis screw rod vibrates during printing, especially when there's a sudden change in direction. This vibration causes a rattling noise from the Z-axis screw rod. I'm not sure if the bearing housing was designed to allow the Z-axis top bearing to shift around, but one thing is certain: Anycubic 3D customer support confirmed that it shouldn't be like that. One temporary solution is to raise the Z-axis rod a bit higher so it touches the plastic cover and presses the rod under pressure, eliminating the rattling motion. However, over time with multiple printing sessions, the rod will start moving back and forth again, making a permanent solution necessary. Removal of the top plastic cover and bearing allows you to place printed plastic directly in position. This small plastic model is a simple yet effective solution that doesn't require any printer modifications, only an additional part. The printed plastic supports the bearing itself, keeping the rod stationary. Maybe the best material for this project is flexible filament with a stiff but rubber-like characteristic that absorbs vibration while preventing rattling sounds. Since I had ABS on hand at the time of making this project, it still offers some softness and absorption properties compared to harder plastics. Those with access to rubber can cut a piece similar in shape instead of printing one. This solution demonstrates the practical use of 3D printing for creating repeatable and useful solutions that others can apply to their own Anycubic Chiron printers.