#Hemera retraction settings free

This means that it is not necessary to exaggerate with this value.

This is because retraction doesn’t need to pull the loose plastic material, but just to remove the pressure from the nozzle. It can happen immediately or even after a certain amount of time. It is a very common reason why hot end blockages are formed.

#Hemera retraction settings free

A greater distance could bring the filament to a colder point of the extruder channel, where it will cool quickly, becoming solid and taking up all the free space. Retraction DistanceĮach printer has a suggested retraction distance which is based on the type of hotend. Turning very fast can damage the filament instead of pushing it, this way, lots of material will accumulate on the gear and progressively worsen the grip. Retraction speedĪn extreme retraction speed leads to a gradual consumption of the filament. This can lead to under extrusion or worse, not printing entire layers. Using a very low temperature could lead to lower viscosity of the melted plastic, therefore a greater effort for the stepper motor which at a certain point will start to lose steps. Some of you probably already tried putting high values into these settings but be aware, exaggerating with these settings can lead to other problems as described below: Temperature So the first step is finding the right temperature.Īfter that, we will need to determine the best values for retraction speed and retraction distance. Very thin and it will be easier to stretch a longer distance. Normally, problems of this sort derive from 3 parameters:įirst of all, an excessive hotend temperature will make the material