Infill is the internal structure that supports the outer shell of a 3D printed object. It can affect the strength, weight, and appearance of the print.

There are many types of infill patterns, such as grid, honeycomb, triangle, gyroid, and more. Each one has its own advantages and disadvantages depending on the application and the desired properties of the print.

Grid infill is one of the most common and simple patterns. It consists of horizontal and vertical lines that form squares. Grid infill is easy to print and provides good strength in all directions. However, it can also be heavy and use more material than other patterns.

Honeycomb infill is another popular pattern that mimics the structure of a bee’s honeycomb. It consists of hexagonal cells that are connected by thin walls. Honeycomb infill is lighter and more efficient than grid infill, as it uses less material while providing similar strength. However, it can also be more difficult to print and require more processing power.

Triangle infill is a pattern that uses equilateral triangles as the basic unit. It is similar to honeycomb infill in terms of efficiency and strength, but it has fewer connections between the cells, which can reduce printing time and noise. However, it can also be less stable and prone to deformation.

Gyroid infill is a complex pattern that creates a continuous surface with no gaps or holes. It is based on a mathematical function that produces a wavy shape. Gyroid infill is very strong and flexible in all directions, as it can absorb stress from different angles. However, it can also be very slow to print and require a lot of memory.