There actually are some really cool proof of concepts where people have 100% 3d printed a gun. And “potato cannons” are generally a PVC firing chamber and barrel.
For legal purposes: Preface everything after this with a dozen "allegedly"s. A couple years back I went to a really cool event where people had built machine guns out of wood and plastic (FDM). None had any issue with doing well over 100 rounds each. That said, anyone with half a brain cell was literally hiding in a bunker nearby out of terror when the firing was going on. But… yeah.
Like anything, it is about pressure, strength, and geometry. And, as The Troubles in Ireland can attest… you don’t need THAT much skill to make something that will fire… once. Which is why there are so many shed machine guns and rifles with split barrels and completely exploded receivers in The Royal Armouries.
NuXCOM_90Percent@lemmy.zip 2 days ago
There actually are some really cool proof of concepts where people have 100% 3d printed a gun. And “potato cannons” are generally a PVC firing chamber and barrel.
For legal purposes: Preface everything after this with a dozen "allegedly"s. A couple years back I went to a really cool event where people had built machine guns out of wood and plastic (FDM). None had any issue with doing well over 100 rounds each. That said, anyone with half a brain cell was literally hiding in a bunker nearby out of terror when the firing was going on. But… yeah.
Like anything, it is about pressure, strength, and geometry. And, as The Troubles in Ireland can attest… you don’t need THAT much skill to make something that will fire… once. Which is why there are so many shed machine guns and rifles with split barrels and completely exploded receivers in The Royal Armouries.