Parametric portafilter funnel

thingiverse

This is parametric portafilter funnel which can easily be adjusted in the Customizer or in OpenSCAD for oddball portafilters. As is, it is made for a 53mm for a portafilter/tamper diameter with an outside diameter of approc 60mm. The funnel sits on top if the portafilter with deep side supports, so it does not really need any more support. Print upside down with 3 or 4 outer layers and small layer height to make the inside surface as smooth as possible. There is always the question about food compatibility with various types of printed plastics, but for this application, with dry coffee, I am personally not worried, but make your own judgement. I used PLA, but PETG may be better.