this post was submitted on 04 Feb 2025
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Why are there triangles in the infill that get filled with one layer? (lemmy.world)
submitted 2 weeks ago by lukstru@lemmy.world to c/3dprinting@lemmy.world
14 comments fedilink hide all child comments
 

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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[–] tenchiken@lemmy.dbzer0.com 21 points 2 weeks ago (2 children)

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.

[–] myplacedk@lemmy.world 12 points 2 weeks ago

This is the answer. They are bridges to support the next layer.

[–] nullroot@lemmy.world 3 points 2 weeks ago

This is the answer. +1

[–] Imgonnatrythis@sh.itjust.works 5 points 2 weeks ago (1 children)

Does it match in slicer or something lost in translation during the print?

[–] lukstru@lemmy.world 5 points 2 weeks ago

Huh, it matches the slicer output. So whatever it is, it’s on purpose

[–] paf@jlai.lu 2 points 2 weeks ago

I don't use orca, but you may have a setting to reduce retraction in infill. This is for reducing printing time. You can disable it (if there is this setting)

[–] Carighan@lemmy.world 1 points 2 weeks ago (1 children)

Was this a ready-to-print file you got from someone? Or one that you sliced yourself?

[–] lukstru@lemmy.world 2 points 2 weeks ago (1 children)

Sliced myself. No idea which setting does this tho

[–] Carighan@lemmy.world 2 points 2 weeks ago

Hrm, unlike then. I was thinking whether someone had added that solid-layer-every-X-layers option to the slice. (sadly can't remember the name, and am at work)

[–] Tehdastehdas@lemmy.world -2 points 2 weeks ago* (last edited 2 weeks ago) (3 children)

Side topic; why are there any squares? They're not stiff because they skew, unlike triangles.

= flexible

= rigid

[–] ExcessShiv@lemmy.dbzer0.com 8 points 2 weeks ago* (last edited 2 weeks ago)

They're squares because OP selected rectilinear as infill type

[–] lukstru@lemmy.world 4 points 2 weeks ago

There are squares because that is the slicer setting for infill, and it’s a cosmetic print. You’re right though, for something more stable I should’ve picked another infill pattern

[–] qaz@lemmy.world 3 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

Why use triangles instead of hexagons? They're the bestagons after all