Infill Density & Patterns
Infill is the internal structure printed inside the solid outer walls (perimeters) of a 3D model. Instead of printing parts 100% solid, slicers generate hollow internal lattices with customizable percentage densities (typically 10%–25%) and geometric patterns.
Popular Infill Patterns
Common infill geometries include Gyroid (uniform 3D strength in all directions without nozzle crossing), Grid (fast 2D structure), Honeycomb (high strength-to-weight ratio), and Adaptive Cubic (denser near top surfaces to minimize filament consumption).
Choosing Infill Density by Application
Visual decorative figurines and display models typically use 10%–15% infill to minimize cost and print time. Functional mechanical brackets, gears, and outdoor fixtures benefit from 30%–50% Gyroid infill alongside 4–6 solid wall perimeters.
Impact on Print Quotes & Material Savings
Decreasing infill from 40% to 15% can reduce filament weight by 35% and cut print time by up to 25%, significantly lowering the final quote for client orders.
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