This is a tamping station to be used with the WDT tool made by jkim_makes, a portafilter funnel, 58.5mm tamper and a Bplus or similar mesh. His excellent 9 prong WDT tool can be found here: https://www.thingiverse.com/thing:4819617.

Printing:
Most any filament should work for this.

2 perimeters minimum, 5 top/bottom layers and 20% infill are a good place to start.

This model can also be milled on a desktop CNC.