Cold runner systems are used in injection molding machines to convey material from the nozzles to the mold cavity. The material is cooled in the channel between the nozzle and the cavity (the runner) ...

which uses compressed air to force the silicone out of the nozzle and into the waiting mold. It’s basically using a bunch of home DIY gear to create a cheap injection molding solution for ...

(Credit: Stefan, CNC Kitchen) The actual injection process is where things get more hairy for [Stefan], as he attempts to push the clamped-shut mold against the nozzle of the FDM printer to inject ...