The idea of being able to run a 3D printer at home is immensely exciting. Having to purchase expense, fiddly feedstock for such a miracle devices not so much. It isn’t hard to imagine the shenanigans of today’s laser and ink jet makers writ large when the ability to print small volume plastic doodads is common place.
Now replace that stress inducing image with one of you pouring your plastic recyclables into a hopper attached to your desktop 3D printer. Make points to some work by students at Victoria University in Wellington that could lead the way to that direct re-use future. Details are scant though it appears like there is an intervening step of grinding HDPE plastics, similar to the pelletizing in industrial recycling I imagine.