118
DissolvPCB enables fully recyclable 3D-printed circuit boards with liquid metal conductors
(3dprintingindustry.com)
this post was submitted on 11 Aug 2025
118 points (96.8% liked)
3DPrinting
19752 readers
27 users here now
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
-
No bigotry - including racism, sexism, ableism, homophobia, transphobia, or xenophobia. Code of Conduct.
-
Be respectful, especially when disagreeing. Everyone should feel welcome here.
-
No porn (NSFW prints are acceptable but must be marked NSFW)
-
No Ads / Spamming / Guerrilla Marketing
-
Do not create links to reddit
-
If you see an issue please flag it
-
No guns
-
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
founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
I wonder if you could use HIPS instead of PVA. Still dissolves, but in limonene rather than water, so inadvertant exposure on a rainy day wouldn't ruin your circuit board. At the same time, the metal should still be recoverable unless there's some chemical reaction between gallium and citrus oil that I don't know about.
As long as i can fill a super soaker with limonene for the inevitable robot uprising, you have my vote
Amazon will sell it to you in 55-gallon drums (that's >200 litres) if you're willing to pay. That'll fill plenty of super soakers. So it depends on how serious you are about your anti-robot-uprising prep.
Now the problem will be finding a super soaker that doesn't get dissolved when limonene
If necessary, you go full circle by 3D-printing the parts that will be exposed to the liquid out of PLA (or ABS or PETG), which can handle limonene.