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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While I've never bought their food-safe PLA specifically, I've had good luck with other products I've purchased from filaments.ca, for what it's worth.
There are filaments with stainless steel or other metal powders that shouldn't rust (brass/bronze/copper are also common). The one I linked was just the first one DuckDuckGo spat back at me this time. Depending on what kind of sensors you need this to show up on, there are electrically conductive filaments that might also be useful to you.
As mentioned by another poster, Prusa is a pretty decent company known to produce reliable printers, if you're looking to start with a smaller unit under $1000USD.
Honestly thank you for the links to filaments and Prusa. I'll definitely be looking at other metal like options.
I've made an account with Prusa and I'll be reaching out to them tomorrow!