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Casting and Mold Making...

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 Casting:  Its' a manufacturing process in which a liquid material is usually poured into a mold, which contains a hollow cavity of the desired shape, and then allowed to solidify. The solidified part is also known as a casting, which is ejected or broken out of the mold to complete the process. Casting materials are usually metals or various cold setting materials that cure after mixing two or more components together; examples are epoxy, concrete, plaster and clay. Casting is most often used for making complex shapes that would be otherwise difficult or uneconomical to make by other methods.  3D printing and injection molding aren't really competing technologies so much as they are complementary. 3D printed prototypes are not typically finished parts. Most FDM machines utilize either ABS or PLA plastic (and others!) which is more often than not a different product than the final manufactured part will be made from. Moldmaking: Whether you are interested in how to make a mold for reproducing a sculpted figure, an antique picture frame, an industrial pattern, an architectural molding,...
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