I designed a Tamper for a Portafilter with a 51mm diameter. You can print the parts separately and screw them easily together. Recommendations: I definitely would recommend using food safe material for the bottom part. A good company that provides this filament is FormFutura: HDGlass
portafilter funnel delonghi 3D Models to Print - yeggi
portafilter 51mm 3D Models to Print - yeggi
Free STL file Coffee Tamper ☕・3D printing model to download・Cults
51mm portafilter 3D Models to Print - yeggi
Tamper best 3D printing files・119 models to download・Cults
Free STL file 51mm Coffee Tamper ☕・3D printable model to download・Cults
espresso tamper station 3D Models to Print - yeggi - page 22
Tamper best 3D printing files・119 models to download・Cults
Free STL file Espresso Tamper ☕・Design to download and 3D print・Cults
STL file Coffee Tamper 51mm (Portafilter) ☕・3D print design to download・ Cults
Tamper best 3D printing files・119 models to download・Cults