Espresso E61 Shaker Redistribution Dosing Cup

thingiverse

This is a cup that fits on top of your e61 portafilter. I was having lots of issues getting perfect extractions with my naked portafilter and I saw some videos where baristas were using a small cup to shake up the grinds into the portafilter. This cup allows you to shake the grinds easily in the portafilter. Prior to this I had tried many different techniques. This works the best for me: Grind the coffee into the portafilter or dosing cup. Put the cup on the portafilter and shake the grounds up and down. Adjust your shaking angle so when you take the cup off it's somewhat level (doesn't have to be perfect). Tap the sides of the portafilter until the grinds become level. Tamp and voila! I printed this in ABS, but i'm sure it'd be fine in PETG. Not sure how PLA would hold up to the higher temps. By the way, if you print this in ABS, it is easy to acetone smooth the inside of the cup by spraying a little acetone into the cup, then placing it on a portafilter with a blank basket on it. If you do this, the grinds won't stick as much to the cup. Update 10/24/2020: Added a taller version (40mm). Update 12/28/2020: Added an even taller version (60mm)