BX-303 Grease for Bambu 3D Printer Lead Screw Maintenance

BX-303 is a maintenance grease for lead screws. It is listed in Bambu Lab’s maintenance Wiki as a grease option for lead screw lubrication.Use it after cleaning the threads, then apply a thin, even layer and wipe off any excess to reduce dust build-up. Proper lubrication can help keep Z-axis movement smoother and may reduce abnormal noises over time. It can also be used to help reduce belt-to-idle-pulley rubbing noise when applied correctly. For other parts, follow the printer maker’s guidance (typically oil for rails/shafts), and avoid applying oil or grease to X-axis carbon rods on X1/P1 series.