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 have a box of 8mm round x 3mm thick neodymium magnets and a box of 8mm round x 1mm thick neodymium magnets. Originally, I got the 3mm thick ones for a print I got of thingiverse and then the 1mm thick ones for some stuff I waned to do. Overall, I use the 1mm thick ones more. But the 3mm ones are nice when I want a solid connection. That they are 8mm in diameter is probably less important than just having standard sizes I can design around. So, I'd say have some standard magnets you can design around. The exact sizes are probably less important; but, knowing you have them, you can plan for them.