Skirt loops
How many loose loops the nozzle draws around the part before starting it, so the plastic is flowing evenly when it gets there. At 0 there's no skirt.
How it works
The skirt is an outline that doesn't touch the part: it's printed a few millimeters away, on the first layer, and it lets the nozzle push out old plastic and find its rhythm before the real part. Each extra loop purges a little more.
Many printers (Bambu ones among them) already draw a purge line at the start, so the A1 profile comes with 0 loops and you won't notice the difference.
When to change it
- If your printer draws a purge line at the start (like Bambu printers): 0, the profile value.
- A filament that takes a while to flow evenly, like a flexible TPU, or right after changing the nozzle: 1 or 2 loops.
- An ABS box on an open printer, to block cold air: 2 loops with a “Skirt height” of several layers.
Typical values
| Value | What for |
|---|---|
| 0 | A1 defaultdefault |
| 1–2 | Extra purge |
| 3+ | Draft shield, with height |
Watch out for
- The skirt takes up room around the part; on a full plate, it may not fit.
- At 0 loops, the skirt height and distance do nothing.
Goes well with
What Bambu Studio saysits help card, quoted
What Bambu Studio says
Number of loops for the skirt. Zero means disabling skirt
Bambu Studio tooltip for this setting · AGPL-3.0
Read more at the official source
In your profile0.20mm Standard @BBL A1 · 0
In Bambu Studio, the profile 0.20mm Standard @BBL A1 sets it to0
In other slicers
- Orca Slicer
- Skirt loopsOthers › Skirt
- PrusaSlicer
- Loops (minimum)Skirt and brim › Skirt
- Cura
- Skirt Line CountBuild Plate AdhesionOnly used with adhesion_type = skirt.
Names taken from each program's code (Orca Slicer 2.4.2, PrusaSlicer 2.9.6, Cura 5.13.0). Credits