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Process › Others› Bed adhensionbrim_object_gap

Brim-object gap

The gap between the brim's innermost line and the part. Small, it holds more; large, it comes off more easily.

Greyed out (you can see it but not change it) unless “Brim type” is not “No-brim”. See Brim type.

How it works

If the brim fuses completely with the part, pulling it off takes a bit of the edge with it. A gap of a tenth of a millimeter keeps it stuck just enough to hold and snap off cleanly.

It applies to both the automatic and the manual brim.

When to change it

  • For almost anything: 0.1 mm, the profile value.
  • The brim on a tall tower comes loose by itself during the print and doesn't hold: 0 or 0.05 mm.
  • The brim on a gear is hard to pull off or leaves a lip on the teeth: 0.15–0.2 mm.

Typical values

ValueWhat for
0.1 mmDefaultdefault
0Maximum hold
0.15–0.2 mmComes off more easily

Watch out for

  • If there's still a gap at 0, it's because of “Elephant foot compensation”, which shrinks the part's first layer so it doesn't come out wider than it should.
  • It's grayed out when the type is “No-brim”.

Goes well with

What Bambu Studio saysits help card, quoted

What Bambu Studio says

A gap between innermost brim line and object can make brim be removed more easily

Bambu Studio tooltip for this setting · AGPL-3.0

Read more at the official source

In your profile0.20mm Standard @BBL A1 · 0.1 mm

In Bambu Studio, the profile 0.20mm Standard @BBL A1 sets it to0.1 mm

In other slicers

Orca Slicer
Brim-object gapOthers › Brim
PrusaSlicer
Brim separation gapSkirt and brim › Brim
Cura
Brim DistanceBuild Plate AdhesionOnly used with adhesion_type = brim.

Names taken from each program's code (Orca Slicer 2.4.2, PrusaSlicer 2.9.6, Cura 5.13.0). Credits