this post was submitted on 21 Dec 2025
17 points (69.8% liked)

3DPrinting

20634 readers
114 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

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 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
[–] unpossum@sh.itjust.works 46 points 3 days ago (3 children)

Summary:

This video critically examines the popular perception of PLA carbon fiber (PLA CF) reinforced 3D printing filament, arguing that it is an even bigger scam than previously thought. By conducting bending tests, microstructural analysis, and CT imaging, the creator demonstrates that PLA CF does not improve mechanical strength, stiffness, or impact resistance compared to regular PLA. Instead, carbon fibers disrupt layer bonding, create voids, and lead to stress concentration, ultimately weakening printed parts.

[–] felbane@lemmy.world 7 points 3 days ago (1 children)

Honestly whether it's PLA or not it seems incredibly foolish to print with filament impregnated with carbon fibers. Like, "hey this lead tastes sweet" level of foolish.

[–] roofuskit@lemmy.world 3 points 2 days ago

Fiber impregnated filament is actually really great if the material is prone to warping. It stabilizes the filament and reduces warping cause by shrinkage as the filament cools.

That's really the only thing it's good for. So unless you're printing PLA crazy fast, it's useless.

[–] thisbenzingring@lemmy.today 8 points 3 days ago (1 children)

I heard it will eat a brass nozzle if it has some age to it. Eh, I could care less except that it does produce some cool looking objects that normal PLA cant replicate.

[–] roofuskit@lemmy.world 1 points 2 days ago (1 children)

Hence why most printers don't come with brass nozzles anymore. The majority come standard with hardened steel.

[–] Bluewing@lemmy.world 1 points 1 day ago

It's more that stainless steel is cheaper than brass these days.

[–] ArcaneSlime@lemmy.dbzer0.com 3 points 3 days ago

Doing "Bob's" work, thanks!