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Process › Others› Prime towerprime_tower_infill_gap

Prime tower infill gap

How far apart the lines of the prime tower's infill are, as a percentage of one line's width. At 100% they touch; at 150% there's half a line's width of gap between them.

Not always visible. In Bambu Studio this setting only shows up when “Enable” is on. See Enable.

How it works

The tower's infill is back-and-forth lines. If they touch, a filament that swells or piles up (PETG, fiber-filled materials) forms bumps; with a gap between lines, that excess has somewhere to go.

It's the distance between the centers of two lines: 150% is 1.5 line widths, which means half a line's width of gap.

When to change it

  • For almost anything: 150%, the default.
  • A two-color PETG keychain whose tower comes out bumpy or gets brushed by the print head: 180–200%.
  • A tall multicolor PLA figure, where you want a solid, sturdy tower: 100–120%.

Typical values

ValueWhat for
150%Defaultdefault
180–200%Filaments that pile up
100%Solid tower

Watch out for

  • With ramming turned on (the push of filament before each change), that zone of the tower doesn't go below 200%.
  • It only shows up with the prime tower turned on.

Goes well with

EnableMax speed
What Bambu Studio saysits help card, quoted

What Bambu Studio says

Infill gap

Bambu Studio tooltip for this setting · AGPL-3.0

Read more at the official source

This setting on the Bambu Lab wiki
In your profile0.20mm Standard @BBL A1 · 150 %

In Bambu Studio, the profile 0.20mm Standard @BBL A1 sets it to150 %

In other slicers

Orca Slicer
Infill gapMultimaterial › Prime tower
PrusaSlicer
No clear equivalent.
Cura
No clear equivalent.

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