this post was submitted on 24 Dec 2023
112 points (100.0% liked)

3DPrinting

15644 readers
204 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: !functionalprint@kbin.social or !functionalprint@fedia.io

There are CAD communities available at: !cad@lemmy.world or !freecad@lemmy.ml

Rules

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 ![](URL)

Moderation policy: Light, mostly invisible

founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
[–] filcuk@lemmy.zip 18 points 11 months ago (2 children)

I'm not an expert, but plastic degrades. It still needs new plastic in the mix to keep its material properties. Not all plastic is suitable for everything either, and not all can be recycled.

I do agree that it would be awesome, but don't think it's feasible in the near future.

[–] nilloc@discuss.tchncs.de 8 points 11 months ago (1 children)

It might become feasible for certain types of plastic. #1 and #2 (PET and HDPE) are easily cleaned and remelted.

ABS can offgas butadiene (the B) and is pretty cancerous.

PVC can lose the Chloride and that’s deadly too.

The polystyrene is too bulky to make sense recycling in low quantities without big compaction equipment. But apparently can be profitable if you can offload the compaction and collection costs to sellers or consumers. Otherwise recyclers don’t touch it.

We really just need to outlaw using most difficult to handle plastics for one time use.

[–] Bananigans@lemmings.world 1 points 10 months ago (1 children)

You can at melt polystyrene down with acetone for compact storage and repurpose it as glue. It's an option at least.

[–] nilloc@discuss.tchncs.de 1 points 10 months ago (1 children)
[–] Aux@lemmy.world 1 points 10 months ago (1 children)

Cooking on a gas stove produces so many VOCs that any plastic melting will cry in the corner. Yet many people still cook on a gas.

[–] nilloc@discuss.tchncs.de 1 points 10 months ago

Yeah, finding out how much crap comes out of those stoves really makes me upset about all the shitty landlords I had over the years that didn’t bother installing working vents over the stoves.

Got a halogen/glass stove now and it works great.

[–] kent_eh@lemmy.ca 5 points 11 months ago* (last edited 11 months ago)

Yes, and he demostrates that in the video.

Steffan added a small percentage of virgin plastic to his re-grind material and the result was stronger than just the original plastic material before grinding/extruding.