I cant wait for decker 9 to hit the deck. Or even better imagine a Decker 45 and this bad boy on it
- 3 Posts
- 18 Comments
TylerBourbonto
General Discussion•PA6-CF vs PA6-GF - Impact Toughness vs BrittlenessEnglish
2·1 month agoYou 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.
Hey Ill give your paper a read, thanks for your work. Icant stress enough how important is the work of the devs to the community. I think I once saw an even harder TPU, but that is probably another dead end. I agree that the artistic filaments are a dead end as well, but not everything is what it seems, ie I can’t find much concrete data on that CF PLA from Creality but according to some it has better layer adhesion than some non CF PLAs. And dr Gaspar tested the Tinmorry CF PETG that also had better later adhesion than vanilla.
This will be a hot take but I think the community is too conservative with materials. I understand that printed bang sticks are inherently dangerous and it’s best to be on the safe side, but there was a guy on reddit who printed launchers out of ASA only and got shit for that despite having working proofs. There even was a guy who posted a beautiful Urutau made from Creality Hyper PLA-CF and claimed over 100 rounds without signs of damage. OG FGC-9 readme calls for plain PLA. That is not something that an average Joe should do, but experiments could lead us to material independent designs. And it would be a good thing, Homeland security can’t put everyone who orders any type of filament from Amazon on their watch list.
Traditional PA6-CF is still arguably a better choice as it has higher impact resistance and it’s cheaper. Dr Gaspar has great videos and is the best resource available on youtube, but you have to take some of his results with a grain of salt as he used to have constant troubles with layer adhesion in older videos when he was printing with open printers. And he doesn’t run all tests across the temperature range which sometimes might change the properties, uses very small sample sizes and sometimes doesn’t follow up on weird outliers.
Nitrocellulose is extremely flammable, but so is commercial smokeless. Nitroglycerin is so sensitive it will go boom boom if you sneeze too hard.
Then I’ll happily lurk there until I learn enough to be able to contribute.
This is a good starting point, but we need to keep it up to date. Also we don’t have to limit ourselves to beginner guides.
I would like something more curated. I’m concerned about malicious actors or just simple idiots spam posting and burying everything else underneath.
This is a great starting point since it is already there. @TheShittinator@forum.guncadindex.com what do you think about potentially using it for general GunCAD knowledge?
It’s nice having this for historiographical reasons. Other than that, some of the sections need refreshing. I’ll soon try to contribute something.
I’m all for it, but I dunno how illegal is it to discuss boom boom bang drones here or anywhere.
Not entirely printed. The upper is a piece of square tube with a printed thingamajig on top. Look at the scratch mark on it.
Yeah, priming compounds are about as far as I wanna go.
There’s also sciencemadness.org and probably more, but I like redundancy in case someone or something gets nuked.
Impressive nevertheless. In case whole FOSSCAD moves here, how hard would it be for you to scale?





If its only blocked on Odysee you can still get it in the lbry app probably