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guilt free hobbies
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this post was submitted on 17 Feb 2026
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Memes of Production
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I've been 3D printing for a while, not this specific thing though. Nonetheless, I would imagine any part which is made of plastic on production models is probably fine to 3D print.
Even some parts that are normally aluminum are fine to 3D print. Definitely want to think twice and maybe consult with an engineer before replacing any steel parts with 3D printing, though.
Then again there is lost PLA casting, where the part itself isn't printed. I definitely don't have the materials science background to determine feasibility of using that method for parts that cannot be printed directly, but it's food for thought.
Well, there are firearms out there that use cast parts. Ruger, especially tends to use a lot of castings.
But casting can be a finicky process and can sometimes leave unexpected and invisible voids and weak spots in the metal. It's not something you'd want to use on the pressure-bearing parts of a firearm unless A) the firearm was designed with that in mind and those parts are overbuilt to compensate for potential weaknesses, and B) you have a lot of experience with casting and you're well able to examine the parts and determine if they have hidden weaknesses (such as with x-ray analysis to detect defects).
Casting also usually leaves somewhat of a rough finish, so it usually needs finish machining done where mechanical parts need to interact with close tolerances. So casting is more of a starting point than a one-and-done manufacturing method. Casting can save you some effort when compared to starting with a solid block of metal.