Bambu PET-CF printed with orientation to test layer strength. Results very similar to PA6-GF except PA6-GF breaks like glass, not on the layer lines. To be clear, it’s possible to use better orientations and custom model changes to reinforce things, I don’t consider that reliable though.
The 43X got around 6 shots before splitting apart. This is the 6th attempt with various filaments and models of 43X, they all suck. Using Aves rails. Might have buy the real thing.
The 1911 fired one single 45 and it’s done. Machined the rail myself 6061. First attempt. It’s too bad, this thing was so smooth.
In the firearm space, PET-CF works well for some handguards that are bolt-in-place designs (I used it for the handguard on my Urutau). The high-stiffness, low-creep, low-cost is also good for magazine bodies (as long as they don’t need to survive drops). Stocks and braces are another application where PET-CF shines, again due to high-stiffness and low-cost. If you ignore cost, PET-CF/GF is always a bad choice. But if the idea of paying $60+/kg to print a pistol brace bothers you, PET-CF/GF at $35/kg starts to make more sense.