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PA6-CF vs PA6-GF - Impact Toughness vs Brittleness
(fosscad.io)
Reading through this thread: https://forum.bambulab.com/t/gf-vs-cf-pros-and-cons/192469
What's the consensus on PA6-GF vs CF?
I'm mostly interested in optimizing Super Safety Components like the lever for impact resistance, but also anti-warping.
Currently using PA6-CF. Having solidish results.
PLA+ lever warped (but didn't break) after 450 rounds of .300blk. Very gassy with a can.
Still need to do more solid testing with PA6-CF.
Both material levers break if I smack em with a mallet on an anvil - but that seems like a shitty metric either way.
"superior" depends on the application. IMHO CF should never be used for something that will be handled regularly with bare hands. Also, IIRC the GF stays unsoftened to higher temperatures than CF, which helps when being used for e.g. a barrel mount. I remember a video of someone doing a mag dump on a presumably PLA frame where the barrel was flopping around like a freshly caught fish's tail after a few dozen rounds.
You shouldn't handle glass fiber with bare hands either. Ask me how I know it. And your body can't break down glass while it can handle carbon. CF spreads heat better than GF, that may be why GF reinforced filaments don't soften as quickly.