"There's a gold rush going on in recycling," extrusion expert Paul Martin said ... It's the North American unit of global plastics machinery supplier KraussMaffei Group of Parsdorf, Germany.

We looked at [Precious Plastic] two years back, and their open-source plans for small-scale plastic recycling machines have come ... and a filament extruder. The plans specify some parts that ...

[Dave Hakkens] graduated from the Design Academy of Eindhoven and decided to try his hand at making affordable plastic recycling ... injection molding machine, an extruder, and even a plastic ...