[Feature request] 3d infil patterns

[Vasily]

Current infil patterns have one dimension strong.
Can be added some height-depended infil patterns?
Like: https://3dprint.com/134894/type-a-machines-methods/

[Lagbert]

This would be a great feature for Simplify to include.

Slic3r does something similar with their 3D honey comb.
http://slic3r.org/utils/appoimg/show?id ... ss=hplarge

[CompoundCarl]

I've done some test prints before using the 3D fill patterns in some of these other programs. They actually came out weaker in ALL directions! It was much easier to bend or break from both the top and the sides. The standard patterns in S3D were already much stronger than anything like 3D honeycomb or any other 3D pattern I was able to print.

If someone else wants to run tests, I would love to compare results. But from what I saw, it definitely didn't add any extra strength