- Warping and shrinkage are definitely a headache, especially with bigger parts.
- I’ve noticed cooling rates make a huge difference—uneven cooling = weird shapes.
- Sometimes adding more gates or tweaking the mold temp helps, but honestly, there’s always some compromise.
- With casting, you get more leeway on complex shapes, but surface finish and strength can be hit or miss.
- For me, it’s usually about what matters more: precision or flexibility.
CASTING VS INJECTION MOLDING—WHICH METHOD WORKS BETTER?
With casting, you get more leeway on complex shapes, but surface finish and strength can be hit or miss.
I get what you mean about casting being more forgiving with tricky shapes, but I’ve actually had better luck with surface finish using certain casting resins—especially for decorative pieces. Injection molding is great for precision, sure, but sometimes the seams or ejector marks are just as much of a hassle to clean up. Guess it depends on whether you’re after structural strength or just a flawless look. For me, if the piece is mostly visual, I’ll take the risk with casting and save myself some headaches.
