He’s built his own rotary molder, a lever-operated injection molding machine, an extruder, and even a plastic shredder capable of taking in most scrap plastic. The results are quite impressive ...

Why shred these ... of power to the machine. The blades are the shape you most often see in shredders, gear-like disks side-by-side with teeth cut from them that pull the plastic in while ...

No matter where a Trashpresso goes, it finds plenty of plastic to shred and compress: Yushu was no different. “That microcosm of a tiny township has exactly the same problem as big cities ...