Infill Pattern

The infill pattern defines a structure that is used to fill the volume of the object.

Infill Pattern - Types

Rectilinear

It creates a rectilinear grid by printing one layer in one direction, the next layer rotated by 90°, etc. This way, it saves filament and doesn’t accumulate material at crossings. It’s one of the fastest printed infills.

Aligned rectilinear

This infill is formed by parallel lines drawn inside the model, which resemble the outside support structures. Similar to the previous type, this infill saves time, has average material consumption, plus it doesn’t accumulate material at crossings

Grid

The grid infill pattern creates two perpendicular sets of lines. Together this forms a pattern of squares. This way, material accumulates in spots where the paths cross. The grid infill is more solid (and has better layer adhesion) than the rectilinear infill, however, sometimes it can cause a print failure due to the nozzle going over the crossings where material accumulates

Honeycomb

This infill prints a grid made of hexagons. Its main advantage is mechanical resistance and optimal paths without crossings. The main disadvantages are higher material consumption.

Concentric

The concentric infill traces the model perimeter lines and makes them smaller towards the center. In other words: if you print a cylinder, the concentric infill will create concentric circles inside that cylinder. This can be useful with transparent parts or flexible models