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What is the best infill for 3D printing

This article is brought to you by Lizzsews.

Infill -> what keeps the print stable internally. It helps with crush resistance although cannot help with snapping. It is the inside of a 3D print.

But what is the best infill for 3D printing?

Recommended read: About my 3D printer

You can choose how much infill density you want for a design when you are slicing it. 10%-20% is often a good baseline unless you need a stronger print. 0% being hollow with 100% being solid.

There are different infill pattern types, each infill pattern affects the versatility, strength, weight and print time. It's important to know when to use each different infill pattern to give you the best results on your print.


-Lines -> multiple lines per layer, 2D pattern

-Zig Zag -> typically one constant line, 2D pattern

---> For models or figurines. These infills don’t have a whole bunch of strength but typically give the fastest prints. ~0%-15% infill


-Grid -> a grid, quicker print speed, 2D pattern

-Triangles -> mesh of triangles, stronger, 2D pattern

-Tri-hexagon -> hexagons distributed with triangles, shorter lines to connect each side, 2D pattern

---> For standard 3D prints, subject to low/medium stress.

~15%-50% infill


-Cubic/honeycomb-> stacked and tilted cubes, 3D pattern

-Cubic subdivision -> a variation of cubic, uses less material

-Octet/tetrahedral -> stack of pyramids, 3d pattern

-Quarter cubic -> a variation of octet, half of the pyramids are shifted, 3D pattern

-Gyroid -> a wave effect, equally strong in multiple directions, 3D pattern

---> For functional 3D prints, where good strength is required in multiple directions.

~50%-100% infill


-Concentric -> waves to mimic the outer walls, 2D pattern

-Cross -> grids of fancy crosses, 2D pattern

-Cross 3D -> a variation of cross, the lines move as inclines as it's built, more rigid, 3D pattern

---> For flexible prints, to preserve the flexibility of the filament.

~0%-95% infill

Leave a comment below and let me know what your next print will be! And don't forget to subscribe to stay up to date with all of Lizzsews new articles. See you next time!


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