hahaha，you are right.I am in china so only diy design is useful for me.But it is not mean that printable frame and recivers are useless,I believe there is no such thing as a useless innovation; every design in the 3D-printed firearms community offers some form of inspiration. Builders in the US, where gun regulations are lax, prioritize safety and reliability, which is why many hybrid designs incorporate quite a few factory firearm parts. Of course, since we are in a strictly regulated region, we can reference those designs that require standard gun parts and modify them to fit our constraints—just like how Derwood's AP9 design inspired JStark's FGC-9.

Are you familiar with the Bobcat by AWCY? I think that bearing-delayed mechanism is fascinating, and I feel like its design could be adapted to the Partisan 9 and Urutau relatively easily.

Urutau developer had been capture by police of brazil

can a smooth null use suppressor？I think the bullet well hit the suppressor inside

lbry desktop doesnt work either ：（

the kinetic energy of pip9 nearly a 22lr and 9mm deep's kinetic energy not higher than a 380acp i think it can change to adapt the design,I heard there is an ammo 9.2x19mm --To save on costs, some American reloaders create "wildcat" cartridges by seating Makarov bullets into 9x19mm casings; however, this necessitates a modification to the firearm's chamber design.

use match,do you know match gun?esbacielly black head matches it suit to be used in primers

i think Modelo Polylactico is great because it hard to get bullet and case for me so the 3dp ammo is helpful,sr722 just released weeks ago

it is a pity of the closed of fosscad but the creainnovation is continuing, partisan9 and Modelo Polylactico just public the 3dp ammo is developing fast

Do they typically use standard, purpose-built airgun valve components?Because i am in China buy airgun value will face risks, it's very difficult for me to source specific airgun parts where I am. I was wondering if it's feasible to substitute them with standard, unregulated pneumatic valves (like generic off-the-shelf commercial valves)?

Hi there, your 3D-printed airgun design is really impressive! I saw that it can handle pressures up to 1000 psi, and I'm very curious about the engineering behind it.

Could you share some details on the following?

1. How exactly is the mechanism implemented? > 2. Which specific parts of the airgun are 3D printed?
2. How does the design withstand 1000 psi? Are there specific filaments, print orientations, or reinforcements you used to prevent failure under such high pressure?

because it need ar15 barrel and bolt head,it is hard to get out of USA