In dual extrusion printing, there are several different temperature settings and nozzle status/modes.
- Printing Temperature: the temperature of the nozzle while it prints.
- Initial Printing Temperature: the temperature of the nozzle at the time when this nozzle is switched back and starts printing again in dual extrusion printing.
- Final Printing Temperature: the temperature of the nozzle at the time when this nozzle is about to end a turn of printing and enter stand-by mode in dual extrusion printing.
- Standby Temperature: when you print a model that needs two different materials/colors, there is always one extruder that is in rest mode while the other is printing. The temperature at this period is called standby temperature.
¶ Description
When you print a model that needs two different materials/colors, there is always one extruder that is in rest mode while the other is printing. During this resting process, the extruder lowers its temperature to its standby temperature.
This happens to avoid burning the material in the hotend, thus causing a clog or wasting the material by dripping.
¶ Usage
Generally, the Standby Temperature is set lower than the Printing Temperature. This is to prevent the nozzle from oozing out too much material in vain.
¶ Influence
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If the nozzle temperature remains high while the extrusion motor does not move, the heat might extend back and upwards, melting the filament inside the motor. In this case, the gear will not be able to push forward the filament through the nozzle but chew a spot in the filament. This is known as “heat creep” and will cause your nozzle to clog.
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If the Standby Temperature is set too low, the extruder will need more time to heat up to continue printing when the other extruders are done.