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 
Moderation policy: Light, mostly invisible
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An appimage is basically a bundle of all the required libraries dependencies and the actual application you want to run. Its convinient for the developers since they dont have to package their software for multiple distibutions (debian, arch, suse etc). To have it behave like you are expecting (ie be double clickable to run and searchable) you need to make the file executable (either with chmod or a right click menu if your disto has the option) and create a .desktop file (either manually or using an app like Appimage Launcher)
This may sound complicated but it is pretty easy. Though I find it an unecessary hassle as well. Here is a guide with more info as well : https://itsfoss.com/use-appimage-linux/