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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It strongly depends on how well your 3D printer is tuned. Have you done any accuracy calibration? Try printing a generic test cube and measure the dimensions using calipers.
Also when printing horizontal holes in objects the holes tend to end up smaller than the 3D modelling software says it is. This is because the nozzle can't really do perfect circles and will instead print a polygon that looks round. It literally cuts corners. Another factor is that molten plastic tends to spread a bit to the inside of the hole. You can offset this by making the hole bigger in the design or by using a slicer setting. In Cura it's called Horizontal Hole Expansion.
When printing objects close together you'll need to use Slicing Tolerance (Cura term), that will affect how far different objects tend to be apart from each other. This is important for print-in-place gear designs or similar.
You will need to do a couple of test prints to check the tolerances of your printer.