On long pauses, it’s always good to maintain the nozzle at a set temperature, so it reduces the startup time. It is very useful, especially if you haven’t primed the nozzle well. It repeats the last layer(s) the printer did before the pause, after the pause with the new filament. It specifies how many layers you might want to redo after the pause. It’s just the speed at which the printer is going to run through the extruded amount. Note: This is not going to be your new printing speed. The extrude speed determines the rate at which the printer will extrude the new filament after the pause. The extrude amount determines the amount of filament the 3D printer uses for this process. To do this, it needs to extrude filament to make up for the retraction and also run out the old filament in the case of a filament change. Extrude AmountĪfter the pause, the printer needs to warm up and get ready for printing again. Usually, it’s best to always leave it at Cura’s default setting of 25 mm/s. You have to be careful with this setting because if you get it wrong, it can jam or clog up the nozzle. It is the speed at which the motor pulls the filament back. Retraction SpeedĪs you might have guessed, the retraction speed is the rate at which the retraction occurs. It all depends on the 3D printer’s nozzle length and the filament in use. Usually, a retraction distance of 1 – 7mm is fine. Retraction also takes its parameters in mm. In this case, it’s done to relieve the pressure in the nozzle while also fulfilling its original function. Normally, we use retraction to prevent stringing or oozing. Retraction determines how much of the filament is pulled back into the nozzle when the printing pauses. Park Print Head takes its X, Y parameters in mm. You might need to extrude or run out the leftover filament, and the print head can get in the way or can even damage the model.Īlso, the heat coming from the print head can damage the print if it’s left over it for too long. If you need to maybe do some work on the print or change filaments, it’s nice not having the print head over the print. It might not seem like much, but this is a very important command. The Park print head specifies where to move the print head to after pausing the print. You can select the layer you want by using the “Layer View” tool after slicing. The “Pause layer takes in the layer number as its parameter to determine where to stop. Recall that we said you needed to slice the print before using the “Pause at height command” well this is why.
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