Currently printing with 5% infill and grid pattern. Why are some of the outer triangles filled in with just one layer? Doesn’t seem to be doing anything.
Sliced with orca slicer
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Those look like bridge before it would build something in top of a part above where there would have previously been void. Making a scaffold of sorts for something above. Since they have to anchor to existing lines, they stretch between existing infill locations. With lower infill %, you’ll see them more prominently.
This is the answer. They are bridges to support the next layer.
Side topic; why are there any squares? They’re not stiff because they skew, unlike triangles.
= flexible
= rigid
