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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Gone through half a dozen of printers: The ender 3 and the like are great value but they aren't foolproof for a beginner. At the other end of the spectrum ($1000+) printer work out of the box and the factory bed leveling is spot on. To answer your question: Buying used has it's own risks. Comparing a used (300€) Prusa Mk3 or mini with a new Ender 3 I probably would recommend the used Prusa.
Other printers you might see on the used market:
Prusa MK3 clones (e.g. fystec): Don't. The reason Prusa works so well is because they are tested and the QC. Those clones might look like the original but might have QC issues.
Bambulab: early units had QC issues so it's a don't.
Creality K1: Same issue: Bad QC.
Quality control aka how well the printer and its components are tested after production