Any Research on New Materials (forum.guncadindex.com)

submitted 2 months ago by Cowboy@forum.guncadindex.com to c/general@forum.guncadindex.com

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Hi all,

Long time community member here. Very sad to recently find out about the massive loss of information from the banning of fosscad, but before this I was trying to do some research and am hoping to get some information here if anyone has it on some of the newer filaments that I have seen recently and if any are worth picking up. I am just polishing off the last of my PAHT-CF and Polymaker nylon-GF spools, which have been incredible for my projects, and I've seen that polymaker has been releasing a lot of new filaments under the fiberon line and rebranding old ones. Are there any of these that are worth checking out and has anyone been done any up to date experimentation with some of these newer blends?

Thanks all, RIP r/fosscad

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[-] TylerBourbon@forum.guncadindex.com 1 points 2 months ago

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.

[-] Kopsis@forum.guncadindex.com 0 points 1 month ago

I went through 2kg of 72D TPU testing it in several different designs. You can find my report on Odysee, but the tldr; is it didn't work - even with design changes. I'm now exploring the capabilities of PCTG (with much better results).

But the bottom line is that some materials have limitations that you just can't design around. PETG, PC, and artistic PLA are always going to be poor choices for most functional firearms parts.

[-] sir_obitus@forum.guncadindex.com 0 points 1 month ago

You could multi-material to cover the outside in them

[-] JackBrush@forum.guncadindex.com 2 points 1 month ago

makes the print sky rocket in time. i had a print i was setting up in PLA that i didnt want to have to work too much on removing supports so i was doing PLA and PETG and the print time went from 3 hours to 14 hours. need an IDEX

[-] sir_obitus@forum.guncadindex.com 1 points 1 month ago

Yeah that is a downside

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this post was submitted on 04 Oct 2025

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