Innovative mold design - collapsible core movable core

A simple video shows you how a "movable core" (someone calls it "collapsible core") works. 1. This runs much faster than "rotating de-molding"; but at the same time the mold cost is much higher. 2. If the plastic part is a gear, then this kind of de-molding is not permmited. #injectionmold #plasticmold