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: [email protected] or [email protected]
There are CAD communities available at: [email protected] or [email protected]
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'm not a lawyer, but what I heard is 3d guns somehow does not fall under definition of firearm in US.
A couple of things regarding this:
Federally there is no law that says you can't print and carry your own gun, no serial number required.
However several states have strict laws and there are weird caveats. It has to be for personal use, cannot be sold or transferred and under the Undetectable Firearms Act any firearm that cannot be detected by a metal detector is illegal to manufacture, so legal designs for firearms such as 3d printed guns require a metal plate to be inserted into the printed body. Also online posting of plans for 3D-printed firearms require a license under the Export Administration Regulations issued by the Bureau of Industry and Security.
So if you design your own gun, or get one from a company that has an export license, print it and then ensure that it has enough metal in it to be detectable... Go for it, should be legal.