54mm Portafilter Funnel Sit on Top

Edit (8-13-18): Decreased height of the funnel (and subsequently width). Was massively oversized. Added small lip at the bottom to better create a press fit with portafilter


I wanted a funnel for my 54mm portafilter (Breville style) that would let me dose and tamp with it on to minimize the mess made. This sits on top of the lip of the portafilter to allow a 54mm tamp to be used normally. When printing, if you slightly downsize the file, you can get a light press fit to keep the funnel in p