3DPrinting
3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.
The r/functionalprint community is now located at: !functionalprint@kbin.social or !functionalprint@fedia.io
There are CAD communities available at: !cad@lemmy.world or !freecad@lemmy.ml
Rules
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No bigotry - including racism, sexism, ableism, homophobia, transphobia, or xenophobia. Code of Conduct.
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Be respectful, especially when disagreeing. Everyone should feel welcome here.
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No porn (NSFW prints are acceptable but must be marked NSFW)
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No Ads / Spamming / Guerrilla Marketing
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Do not create links to reddit
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If you see an issue please flag it
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No guns
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No injury gore posts
If you need an easy way to host pictures, https://catbox.moe may be an option. Be ethical about what you post and donate if you are able or use this a lot. It is just an individual hosting content, not a company. The image embedding syntax for Lemmy is 
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I saw those videos: they are interesting.
You are right, the fact that the 3D printed object are anisotropic add an extra variable to the game. You could use the strongest filament, but if the layer are oriented in the wrong direction you will get a poor results.
I don't know if to avoid such issue, it could make sense for the producer to test molded specimens of filament (cylinders or bricks). In this way they will consider only the material itself. However, the inter-layer bonding properties will anyway play a role when actually printing, so there is the risk that those number won't translate into the printed object properties. Otherwise, they could leverage their experience and claim that the tests were made in optimal conditions, so that you know that that's an upper-bound.