58mm portafilter funnel

58mm portafilter funnel with a 15mm funnel wall. I found that 15mm was the right height to prevent grounds spilling while breaking up clumps without being too intrusive under the grinder. The slots should fit most portafilters, if they don't fit yours let me know and i'll make that element parametric too. Print this upside down and with thin walls enabled so that the inner collar prints properly and fits snug inside the basket. Model is parametric so it should work fine with alternative diameters and heights. Full model is available at OnShape.