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3DPrinting
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I'm not sold on this really making a substantial difference in strength, but it seems relatively easy to implement. Hopefully some slicers pick it up as an option and the community can verify.
More surface area touching, less gaps (air) between layers.
The video did show summaries towards the end of his findings, he admitted that the improvements with his implementation were not statistically significant but if someone made a better process it could be something.
What I think the video could have done a better job explaining was the layered brick analogy. I was confused as first because I was picturing the print as the brick wall bottom to top, and I thought, "well all the layers are overlapping each other, so how is this a fair analogy?" But when I realized the the "bricks" were the layers if the print was sideways, I understood what he meant much better, and was a little more convinced that proper implementation could yield significant strength improvements
cura and orcaslicer both do currently idk about others