It is recommended to purchase lubricant and perform regular lubrication maintenance on the screw rods, optical shafts, and guide rail areas.
Warnings:
1、 To replace the nozzle,you need to preheat the nozzle first;
2、 Prevent scalding when replacing nozzles which are hot;
3、 Use a tool to hold the heating block in place when removing the nozzleto avoid damage to the components.