Infill Settings

Infill is the internal structure of your print that provides strength and support for top surfaces.

Infill Density

Parameter Name
sparse_infill_density
Default Value
15%
Range
0% - 100%
Location
Process Settings → Strength → Infill

Density Guidelines

Infill density comparison from 10% to 50%
Infill density comparison: 10%, 20%, 30%, 50%
DensityStrengthMaterial UsageRecommended For
0-10%Very LowMinimalDecorative objects, vases
15-20%Low-MediumLowStandard prints, prototypes
25-35%MediumModerateFunctional parts
40-60%HighHighLoad-bearing parts
80-100%MaximumMaximumSolid mechanical parts

Infill Patterns

The pattern determines how the infill is structured internally.

Grid Pattern

Simple crossed lines. Fast to print, good for general use.

Gyroid Pattern

3D wavy pattern with equal strength in all directions (isotropic). Excellent for functional parts.

Gyroid infill pattern
Gyroid pattern provides isotropic strength

Honeycomb Pattern

Hexagonal cells like a beehive. High strength-to-weight ratio but slower to print.

Cubic Pattern

3D cubes at 45-degree angles. Good for parts that need strength in multiple directions.

Lightning Pattern

Tree-like structure that only supports top surfaces. Very fast and uses minimal material.

Best Practice: Gyroid is often the best choice for functional parts as it provides equal strength in all directions and prints relatively quickly.

Advanced Infill Settings

Infill/Wall Overlap
How much the infill overlaps with the walls. Default: 25%. Increase for better adhesion.
Infill Angle
The angle of infill lines. Default: 45°. Alternates between layers.
Top Surface Infill Pattern
Pattern used for the topmost infill layers. Often Monotonic for smooth surfaces.
Infill Anchor Length
How far infill lines extend into the perimeter for better bonding.

Walls vs Infill

For most applications, increasing wall count is more effective than increasing infill density:

  • Walls contribute more to overall strength
  • Adding walls is often faster than dense infill
  • External walls directly resist forces
  • High infill mainly helps support top surfaces
Common Mistake: Don't use 100% infill unless absolutely necessary. 4-5 walls with 40% infill is often stronger and faster than 2 walls with 100% infill.