**Clean X-axis horizontal bar** **When to maintain** The x-axis horizontal bar should be checked once a month for dust and particle accumulation. Avoid affecting the left and right movement of the nozzle assembly and affecting the model printing. **How to maintain** X-axis horizontal bar can be cleaned with dust-free cloth and brush, and cleaned with dust-free cloth and brush (graph 10,11) {{ :starry:10.jpg?nolink&600 |}} graph 10 {{ :starry:11.jpg?nolink&600 |}} graph 11