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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Blender is not CAD software and it's very difficult to get precise dimensions.
I would suggest learning to use proper CAD software. you can get a free 'hobbyist' version of autodesk fusion 360 that's fairly cut down. (it lacks things like simulation and substantially more advanced features.)
other options include solvespace and freecad which are both FOSS- Free cad is powerful, but really difficult to learn- with OpenFOAM integration to solve simulations (like force loads, and such,)
OnShape shape is like a shitty version of F360, IMO, with the caveat that it's free version also publishes your models publicly for anyone to see and use.
Solid Edge is also comparable to F360 (though I haven't used it,) and it has a "community" version that's similar to F360's cut down version.