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: 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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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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My first guess is that your temp is off, which is causing the curling you see at the top of the archways and the nozzle is catching that. You might try printing a temp tower (one with exterior overhangs, not just the bridges) to dial in your temp settings.
The temp of the bed or nozzle? I am using generic PLA.
Nozzle. Essentially your part isn’t cooling fast enough, so the less structure under the print, the more it tends to curl up as it cools. Also, make sure your cooling fan is working properly