The extruder is used with a metal die produced on the machining mill and polymer pellets to produce fibrous polymeric materials. Only the type of polymer pellet shown in the recipe can be used to make a specific item, i.e., cord can only be produced using PolyIsoPrene. The metal die used determines the item obtained. A single item is produced at a time, to make multiple items connect the injection molder to a hopper below it. The hopper can then be connected to a chest to allow for more item production.