Very basic tamper station. Doesn't need a lot of material to be robust.
I made two slightly different versions for the portafilters of a Quickmill 3004 and Gaggia Classic.
Dimensions can be lookup up in the scad file.
I have also designed a funnel:
https://www.thingiverse.com/thing:3253995
Update 2020-08-01:
Just for fun, I have redone this simple design in OpenSCAD so the customizer can be used. And in addition:
Old design is still available here:
https://cad.onshape.com/documents/5bc6dab6a6b591e36e81b593/w/04695b27e8e32033c5007198/e/952fa4d9c998ab7d2021ebc4
Tamper-Station.scad | 1.6KB | |
Tamper-Station_Gaggia.stl | 215.0KB | |
Tamper-Station_Quickmill.stl | 219.6KB |