This replaces the hopper for a Krups grinder so grinds go directly into a portafiller, designed for the 58mm portafiller of a gaggia baby twin. I reworked the thingiverse krups lid (https://www.thingiverse.com/thing:71360) adding a deflector so the the more sticky/oily grinds tend to drop through the funnel hole rather than build up.
printed in PLA. some supports are required. the funnel was printed on its back at 0,3mm layer height.