• themeatbridge@lemmy.world
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    1 day ago

    3d printed material has a lower tensile strength than injection molded or stamped materials. Most prints are weakest between the layers, and it’s not always immediately obvious where the weakened points are. Even the parts that don’t get hot or explode are moving and rubbing against other parts.

    Gun parts are subjected to rigorous testing and grading. Not only do they know roughly how many uses before a part will break, but also what to look for on a worn or breaking part.

    3d printed guns, you never know which bullet will be the last.