Espresso Tamper and Portafilter funnel

thingiverse

I upgraded my funnel design so it snugly fits over the portafilter's top with a 51.5mm opening, allowing you to leave it on and use the 51mm tamper without removing the funnel. This modification should minimize messes caused by grounds falling out. The funnel was specifically designed for the DeLonghi ECP3420 Espresso Machine, but if you want to use the tamper with a different machine, you'll need to scale the model accordingly. I created these funnels because I wanted to pair them with 3D Fuel's "Wound Up" filament, which contains spent coffee grounds. I also used their "Buzzed" filament, made from spent beer grain, for the yellow layers of the tamper visible in the above pictures.