¶ Z-axis Lead Screws
Z-axis lead screws are used to drive the heatbed up and down. The three Z-axis lead screws require regular greasing to ensure smooth operation.
¶ When to lubricate
It is recommended to check and lubricate the lead screws every three months. You can use the BX-300/F series grease in the link, but other lubrication alternatives can be used.
A popular lubricant is Super Lube 92003 Silicone Lubricating Grease with PTFE or Lucas Oil 10533 White Lithium Grease which should work similarly.
¶ How to lubricate
1. Clear the dust or plastic particles from the Z-axis lead screws;
2. Press the heated bed "Home" button, and the heated bed rises to the top;
3. Apply a thin layer of lubricating grease on the three Z-axis leadscrews;
4. Press the Z-axis down button, driving the heated bed to drop to the bottom;
5. Apply another thin layer of lubricating grease on the three Z-axis leadscrews;
6. Press the heated bed "Home" button, driving the heated bed to rise to the top;
7. Repeat the heated bed up and down movement process several times to ensure the lubricating grease is evenly distributed on the Z-axis leadscrews;
8. Clear any excess lubricating grease accumulated near the leadscrew nuts;
9. Complete the lubrication of the Z-axis lead screws.
You can control the heated bed's homing, rising, or lowering from the printer side or through the Bambu Studio interface.
