this post was submitted on 21 Feb 2024
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3D prints still suffer from bad layer adhesion due to their 2.5D slicing and printing approach. I investigated if a novel slicing method that interleaves the layer could improve the strength of 3D prints.

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[–] IMALlama@lemmy.world 42 points 9 months ago
[–] ShepherdPie@midwest.social 29 points 9 months ago* (last edited 9 months ago)

Jesus, in hindsight, this is such an obvious and great design trick to increase strength that I'm surprised it didn't become more popular earlier.

[–] JohnDClay@sh.itjust.works 10 points 9 months ago

Love his empirical testing and experimentation.

[–] LazaroFilm@lemmy.world 7 points 9 months ago (1 children)

This makes a lot of sense. I could see this being used for printed buildings and it would be a cull circle.

[–] BigDanishGuy@sh.itjust.works 7 points 9 months ago* (last edited 9 months ago)

it would be a cull circle.

I don't care what you say, I ain't going in that circle with you!

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[–] Kata1yst@kbin.social 2 points 9 months ago (1 children)

Now we just need half-width extrusions on the outer wall!

[–] p1mrx@sh.itjust.works 0 points 9 months ago (1 children)

The thumbnail shows a hexagonal tiling, which is like a brick-laying pattern but rotated 90 degrees, so the "half bricks" are on the top and bottom, not the sides.

Maybe it would still work to orient the hexagons so the zig-zag part is on the walls, and then fill in the gaps with half-height half-width walls. Although "half" isn't exactly correct; the hexagons give you ugly trig numbers.

[–] dual_sport_dork@lemmy.world 1 points 9 months ago (1 children)

You don't need any ugly trig. You can just use a magic number. The magic number in question is 0.8660254, which is the ratio between the width of the longways (point-to-point) to shortways (flat-to-flat) dimensions of a regular hexagon. If you need half of that, divide it by 2 afterwards.

[–] p1mrx@sh.itjust.works 1 points 9 months ago

magic ⇏ ¬ugly