Heating block for precise filament extruding. Provided with nozzle. It's recommended to use with all materials from Z-Filament Series and new materials which will be launched soon.
Hotend replacement is necessary when you encounter problems with material extrusion caused by a blockage inside the hotend. If the extruder motor makes a clicking sound or if the material leaks through the top of the hotend (around the two black screws), or if your print is incomplete (there is some material missing in the structure), the hotend needs replacing.