Originally posted by u/Ok-Blood8662 at 2025-06-30T21:50:55Z
Was hoping I got good enough layer adhesion here, and I may have, but cracks formed at the pin holes.
Fortunately did not have this happen while firing. I noticed the cracks when inspecting the gun at my desk, flexed it, and it completely snapped.
Figured I would share as an example to others. Filament choice is super important in 3D2A. Be careful.
Source: https://i.redd.it/cm8nb5w9y4af1.jpeg
Source: https://b.thumbs.redditmedia.com/Hvop_ukpbveaGUcW1rK6eqQQ2dwiHHpLgQBXvciEnEw.jpg
u/Somebodysomeone_926 · 2025-06-30 22:59:11 UTC · score 8
Why did you think it would?
These are your viable options.
PLA plus Pa6cf nylon Pa612cf nylon Pa12cf Nylon Pa6gf Nylon Pet-gf (glass filled PET, not the same as petg) Pet-cf
Ppacf and ppacf are TBD as far as I can tell
u/Objective_Care_9401 · 2025-06-30 23:56:27 UTC · score -6
Is PETG-CF a viable option too since PLA+ and other cf filaments are?
u/Ok-Blood8662 · 2025-06-30 23:02:44 UTC · score 1
Im aware of the viable options. Ive seen success stories with Asa. Wasn't equipped for nylon yet so asa was the next best thing in my mind for heat resistance.
u/Somebodysomeone_926 · 2025-06-30 23:08:51 UTC · score 3
Do what you want but personally I wouldn't fire one by hand. Tape it to a tree and pull a string