Up close, it looks very feasible for quick(ish) filament experimentation. The air-cooled line looked to largely achieve the 0.05 mm tolerance, though we did see it dip below from time to time. Estimated to achieve up to 1 kg of filament spooled an hour as is, we're told larger spools sizes and weights are on the roadmap. The system is now available for backing on IndieGoGo.