Customizable Espresso Tamper Station

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:
- rounded corners at the groove on the top side
- slightly different dimensions for quickmill to get a looser fit.

Old design is still available here:
https://cad.onshape.com/documents/5bc6dab6a6b591e36e81b593/w/04695b27e8e32033c5007198/e/952fa4d9c998ab7d2021ebc4