Infill that is air/liquid permiable?

[BlueRidgeDog 0]

I need to design a product that will be filled with a special liquid.  I can design two walls and an open infill pattern so the liquid can disperse, but is there an existing infill pattern that is open?  Something like stacked crisscross lines or similar?

[gr5 2,227]

"gyroid" is a good choice.  Many of the patterns are *not* permeable and many are.  Just toggle through them - it's pretty obvious which are which (pick one - slice it - look at the result in PREVIEW mode and scroll through the layers).

[BlueRidgeDog 0]

Thanks.  This is to hold product on an assembly station, to be filled with freezer gel and frozen so that the product stays cool during processing.  Letting the slicer deal with support/infill will be easier than designing a simple structure.  I am going to use PETG that should handle freezing and thawing.

[burtoogle 516]

You can also specify gyroid for the support infill.

[gr5 2,227]

I was talking about slicer infill.  Again - try them all - it will take you all of 3 minutes to select each one, hit slice, and see the result.