[Feature Request] Aligned rectilinear infill

[blackyarr]

Version
1.41.3+

Reason for request
Ability to disable crosing infil lines.

Useful when you print transparent objects or special test objects.

feature is available in slic3r
slic3r/Slic3r#3225
slic3r/Slic3r#3518

[CCMCAGP]

I second this. This feature is very useful for mechanical testing, and at the moment, it's just simpler to use Cura which does this really easily. I don't want to revert to Cura for other reasons. It would be really cool if one day this becomes implemented. Definitely useful for a scientific approach (dogbone tests).
So +1, hoping this gets sorted by a benevolent soul soon!

[wavexx]

I'd love this. I had a couple of scenario that needed finer control over the alternate angle.
I'll comment here instead of inside #2856.

It works, but adding another infill type is less than optimal considering how many we start to have.
It would be nice to have a new setting to control the internal behavior of FillRectilinear. A simple approach: a new "alternate angle", which set at 90 deg to match the current behavior.

What I wished this setting would also do is to counter-rotate the fill pattern by "alternate angle" / 2. "Pattern divergence" might be a better name for this.

The reasoning: let's say I want to align the fill pattern along X, spread by 10C: set fill angle to 0, divergence to 10.
First layer is rotated by -5, second layer by +5. Makes more sense than setting "fill angle to -5" and "alternate angle to 10".
Such a pattern will yield ensure better adhesion between layers while still favoring strength along a main axis.

[neophyl]

Hey Wavexx, it may sound like I’m harping on but in the last release of Super Slicer Merrill added just such a function, you can define the initial angle and now also a rotation angle for subsequent layers. Several of us asked for it.

[wavexx]

I love SuperSlicer, but I secretly wished Merill would attempt to do PRs so that we could get the best of both :/
I know this takes a ton of time, so I guess that's the main reason we're stuck with two forks..

[bubnikv]

Implemented with f0606c2 based on
#2856

[5axes]

tested wtih PS 2.3.0 Rc2 & Rc3 no difference between Aligned rectilinear anb Rectilinear ?