Alpine Mold on Instagram: "🔥 Many people are asking — how do you design a stack mold? The real key lies in one word: flow balance! In a stack mold, achieving simultaneous and uniform filling for both upper and lower cavities all comes down to the hot runner layout and gating sequence. Only when each layer fills evenly can you truly boost production efficiency and minimize warpage or stress deformation. At @Alpine Mold, we combine professional Moldflow analysis and over 20 years of experience to