A funnel to fit the pre milennial la pavoni europiccola. Made for 49mm porta filter size, so fits other machines as well.
Has two locking groves for the funnel to stay in place.
For me it fit well, but he fit might be a bit tight, so if you find tollerance problems, scale it up just a few percentage to give it some more play.
Supports:
Some normal string support added manually at the teeth, but avoid automatic as it prints well without any for the bigger part.
Printed on A1 Mini with PLA and above mentioned support with 0.4mm nozzle. Some sanding might be nice after to minimize coffee sticking to the funnel.