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Somehow I doubt it. The shrinkage must be dependent on geometry/density and their method of compensating can't possibly be good enough to hold tight tolerance over an entire complex part.


Forgings and castings all shrink as well, because metal shrinks substantially when it cools. The dies and molds are made oversized.

I corresponded with a guy who was making his own intake manifold for his mopar. (A very cool project.) He made his own molds. I did some calculation, and said he had to make the mold about 10% oversized. He told me I didn't know what I was talking about, he couldn't believe it would shrink that much. His cast manifold wound up 10% undersized :-)

Anyhow, dimensions that require tight tolerances get machined to spec after the forging/casting.


> Forgings and castings all shrink as well, because metal shrinks substantially when it cools.

Forgings and castings also require post-op machining to bring them into tight tolerances, which isn't something that fits the mental model of a lot of people when it comes to 3d printers.


People who don't own 3d printers. There is plenty of cleanup work on a 3d print of any complexity. I find myself even drilling a fair number of holes in some of my prints because the minimum consistent hole size my printer can generate is a few mm.




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