Precious Plastic is a project started by Dave Hakkens (also the creator of Phonebloks) is a collection of Open-Source machines designed for recylcing and reusing thermoplastics.
Precious Plastic is based in the Netherlands.
There are phenomenal collections of videos for introduction into plastic recycling and machine building.
The machines are currently a Shredder, an Injection Molding Machine, an Extrusion Machine, and a Compression Oven.