Thinking about small size for use on a light weight reprap printhead, what if the granule pusher is sized to push one granule at at time of commercially available sizes, ( they seem usually to be from 3mm to 5mm, sometimes larger)? Is it important to regrind your own plastic instead of dealing with a recycler? In my city we have a nearby plastics recycler that cleans grinds, pelletizes plasticby industromatic - Kartik M. Gada Humanitarian Innovation Prize
Hi, I might be able to help some with a granule extruder. Looking over that past thoughts it seems like you want a hot melt zone, but a cool granule pushing zone and not a large transitions zone because the transition zone can get stuck whenever turned off. So that makes me think of heat rising also, and the idea to pull air out of thin slots and/or holes in a ring around a vertical tube that gby industromatic - Kartik M. Gada Humanitarian Innovation Prize