Here’s one that looks fairly popular. There are some 9mm and 22 uppers as well. https://guncadindex.com/detail/BidensBane_3DAR15_Upper_Receiver:e
I have and can vouch for a Biden’s Bane, got several of them.
It’s gonna suggest retardedly long screws to keep the barrel retainer attached. Don’t. Use your eyes and pick screws of the right length.
watched a video of a dude emptying like 5 mags, with a predictable outcome; his conclusion, it will last for 30-60 rounds. the whole thing was kinda pointless, everything was melting at that point.
so what I don’t understand, is that damage cumulative? like what if it ain’t several mags in succession, but a coupla rounds here and there? the barrel gets to cool down in the interim? I’m sure it won’t be a heirloom thing, but the “test” seems excessive to me.
If you manage schedule of fire to stay below the heat deflection temperature of your material, it could last a lot longer (potentially thousands of rounds). Using a more heat tolerant material like PA or PPA also makes a big difference.
Twas Ivan, twas in PLA, twas indeed excessive. It was a burndown test, not a demonstration of longevity, and he states as much in the video.
If you do one in Nylon, you’ll get a lot more mileage out of it. I’ve FRT’d a mag or two in a BB and not had issues. Beyond that, it starts to get dicey.
Notably, the Orca has the same reaction to the same string of fire.
I’m about to test the tank 9 printable upper to use with @Fl_eggs@forum.guncadindex.com arv remixed lower
Genuinely no idea what you mean by that
I think he meant are the other uppers that can be printed besides the orca





