This Kickstarter funded machine isn’t a printer, but a plastic recycler. Toss in scraps of bad and broken prints, milk cartons, and bottles — pretty much any plastic — and useable filament comes out onto a spool.
3mm and 1.75mm interchangeable die
10,000 RPM grinding motor can handle 3” x 3” pieces of plastic
Price: ~$1000 (a year after successful funding, delivery is still held up due to safety concerns — pre-order status)