However, it is advisable to carry out test prints to find the right settings for the retraction. The values given below for different materials are good guidelines for all Ender 5 models. Like other settings, the retraction distance and retraction speed is highly dependent on the printer and filament used. If the filament is pulled back too far into the nozzle, the hot liquid filament hardens and clogs the nozzle.īut not only the distance of the retraction is important, but also the retraction speed has a big effect on your print result. But a retraction that is too high can also be harmful. If too little filament is pulled back into the nozzle, the liquid filament will escape during the movement and unsightly threads ( stringing) or blobs will result. The retraction of the filament back into the nozzle prevents the accidental extrusion of filament during travel movements without extrusion (e.g. Then the risk of tangles and other disturbances is the lowest. My tip for flexible materials: Set all speeds in Cura (print speed, retraction speed, travel speed, etc.) to a single value. Therefore, it is advisable to print TPU and other flexible filaments at a low printing speed of 20 to 40 mm/s. If the filament is extruded or fed too quickly, it can become tangled and cause clogging. With flexible filaments such as TPU, excessive speed can lead to various problems. For functional parts, it is recommended to choose a fast speed and for decorative parts a slower speed. Normally PLA is printed between 40 and 80 mm/s. For very fine prints and also for different materials this can be too fast. Cura sets the Ender 5 to 80 mm/s by default. However, the correct print speed also depends on the material used. The faster you print, the worse the quality will be in general. Again, you need to achieve a good balance between speed and quality. ![]() Similar to the layer height, the printing speed also has an extreme influence on the printing time.
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