Infill Patterns Explained — Strength, Speed & Material Usage Compared

Infill pattern selection affects print strength, weight, speed, and material usage. While many users stick with default settings, understanding pattern characteristics helps optimize prints for specific applications.

Why Infill Pattern Matters

Infill serves multiple purposes:

• Structural support: Provides internal strength
• Top surface support: Prevents sagging on flat surfaces
• Weight reduction: Varies density without proportional strength loss
• Material savings: Reduces print cost and time

Production applications benefit significantly from optimized infill.

Pattern Comparison

Honeycomb (Hexagonal)

Characteristics:

• Excellent strength-to-weight ratio
• Even stress distribution
• Medium print time
• Good for most applications

Best For: General-purpose functional parts

Glass-filled materials pair well with honeycomb.

Gyroid

Characteristics:

• Superior isotropic strength (equal in all directions)
• Good vibration damping
• Slightly longer print time
• Excellent for load-bearing parts

Best For: Parts with multi-directional loads

Cubic

Characteristics:

• Good strength, slightly anisotropic
• Fast printing
• Easy to print
• Good for standard applications

Best For: Quick prototypes, non-critical parts

Triangular

Characteristics:

• High strength in specific directions
• Fast printing
• Good for specific load cases
• Directional properties

Best For: Parts with known load direction

Grid/Rectilinear

Characteristics:

• Fastest printing
• Lowest material usage
• Weakest structure
• Good for non-structural parts

Best For: Display models, light-duty applications

Lightning

Characteristics:

• Minimal material usage
• Fast printing
• Weak structure
• Automatic density adjustment

Best For: Top surface support only, not structural

Strength Comparison

Density Recommendations

Speed Impact

Relative print time at 20% infill:

Material costs should factor into pattern selection.