Hi, filament expert here
This is not funny
Filaments only do this when they are under extreme distress
this post was submitted on 29 Apr 2025
219 points (99.1% liked)
3DPrinting
17738 readers
587 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
I can just hear it go "pssp, pssp" as it slides through the hot end
Edit: better comment
m o i s t u r e
Filament died of cringe 😔
after printing three Dick Butt in a row
Three Dick Butt? Those are rookie numbers, you gotta pump those numbers up!
Moisture.
Was it left open + maybe in a humid area? Brittle usually means wet filament.
I bought it before COVID but I opened the box just one week ago. It was wet (lots of stringing) but after a quick drying session it printed ok (photos coming soon). Then I put it back in my IKEA dry box
You didn't dry it enough. You only dried the outside, the inside was still wet and brittle. Once you used up the dry stuff it broke.
Hydrolysis is not reversible.
How quick is quick? I have a heated dry box, so all new filament gets at least a 24 hour spa treatment. If I know it's wet, it lives in it until color indicating silica gel no longer changes, then another day for good measure.
I opened the box just one week ago
Was it in an air-tight bag in that box?
They used heat shrink packaging, which doesn't look very airtight
Heat shrink packaging is typical and should be fine. Strange.
Even the thick plastic bags are semi permeable. Eventually every sealed filament will soak up moisture.
Looks like a defense response. Didn't sneak up behind it and scare it did you?
^This
OP spooked it good. Next time announce yourself when you come into the room and this shouldn't happen. Also, do all that other stuff commenter's are recommending, but mostly the annoucing yourself.
Is there a cucumber nearby?
Meow
Entropy?
Can't fool me, that's clearly a pile of Twizzlers around an empty filament spool.
Red Vines
Mmm twizzlers...
Can I get that as a framed print?
This is the internet. Just do it.
Shitposting is a lot less effort.
Degradation over time?
The stress is from cooling the filament and then winding it around the spool. Lots of reasons why the plastic would weaken that stress might suddenly give way, but most of them involve time. If it wasn't completely cooled internally before being spooled, that would dramatically increase the stress (think Prince Rupert's drop).
Op says the roll is pre-Covid, so the time piece checks out.
You were trying to print big tiddy hentai statues and it rebelled.
Why is it on the ground?
You could sit there and feed each piece into the hot end one at a time, I've done that with spool ends but totally not worth it here :p
I tried it with the longer strings but looks like I have to throw everything
Makes perfect sense, beyond saving at this point. Good luck with the next spool, wait to unbox it until you're ready to print a few things in a row 😁
Forbidden Spaghetti
sorry, that was Cthulhu's spool :(