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Slic3r Manual

Skirt

The Skirt setting adds an extrusion a short distance away from the perimiter of the object. This can ensure that the material is flowing smoothly from the extruder before it starts on the model proper.

Skirt settings.

Skirt settings.

Brim

Brim width is used to add more perimeters to the first layer, as a base flange, in order to provide more surface area for the print to stick to the bed with in order to reduce warping (see ยง). The brim is then cut away once the print is finished and removed from the bed.

An example of brim.

An example of brim.