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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When it comes to mass manufacturing, inject molding is the undisputed king. 3D print times are measured in hours per part, injection molding is measured in seconds or even milliseconds per part. Injection molded parts also have a smoother surface finish and are generally stronger than 3D prints.
Setting up an injection molding run is expensive and time consuming. You have to design molds (requires specialized design skills) and have them machined (costly in time and materials). Setting up a 3D print just requires slicing a model and sending to the printer, which can be as little as a few minutes.
3D printing can also create geometries that are impossible in injection molded parts. With injection molding, there are quite a few specific design requirements to allow the plastic to flow into the mold, cool, and be ejected. With 3D printing, there fewer restrictions on the design.
So, if you want a huge number of something it's definitely worth it to spend the up front time and money to do injection molding. If you are doing smaller quantities, need to get started fast, or require geometries that are impossible with injection molds, then 3D printing may be a better option.