4. Double extrusion: Start the filling tower
Due to the fact that there is always a printer in standby mode during the printing process, it is
easy to cause defects such as wire drawing and material leakage. After starting the loading
tower, the extruder will print on the loading tower before each printing, printing any material
leakage on the printing head on the tower, effectively avoiding the phenomenon of material
leakage when replacing the extruder.
Note: The printing position of the loading tower cannot coincide with the model
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