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: 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 ![]()
Moderation policy: Light, mostly invisible
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I've seen this before and I still don't entirely buy it. If you're talking about the pattern left by the nozzle rubbing the print, that will not be a reliable identifier.
Most nozzles are brass. Soft metal. It wears down and the pattern in the plastic will change. Because they wear down anybody doing regular prints is gonna replace their nozzle from time to time. New pattern in the plastic.
This is assuming they don't change a new $2 brass nozzle, print a gun part, then toss the nozzle in the trash. Or the whole printer. My printer right now is probably $150 used at this point, if I was to sell it.
Imo this isn't gonna do much, and for the people who would do nefarious things it will be easily avoided.
(This is ignoring changing print settings, nozzle diameter, filament type, print temp, etc)
You don't have to buy it for them to convince 12 average citizens that they used wizardry and science to definitively prove it's 'real.' See bite mark analysis, fiber analysis, hair analysis, etc, etc, etc. Court rooms are full of pseudoscience because it helps convict more people.
And 'Lie detectors' (polygraphs). Don't forget those frauds.
Afaik those aren't admissible as evidence in court.