Espresso Portafilter Funnel

A funnel for portafilters...
I made two slightly different versions for the portafilters of a Quickmill 3004 and Gaggia Classic.
It is held and centered by wings that go around on the outside.
This way the hole in the middle can be large enough so you can tamper without removing the funnel first.

https://cad.onshape.com/documents/4cbb423d7d2678bc92aafd86/w/3c42741c04df0bc7fd2a4919/e/134661f0244e022abc1179b4

I have also designed the tamper station from the photo:
https://www.thingiverse