Mazzer Portafilter Holder

The Portafilter Holder attaches to a Mazzer Mini grinder allowing handsfree use of a bottomless portafilter. The portafilter rests on the holder while being filled, allowing the barista to do something else while the coffee beans are being ground. 

The Portafilter Holder is made from PETG which is food safe and heat resistant. It weighs 23 grams and takes 1.25 hours to print.

Installation involves removing the base of the grinder to access the two screws holding on the silver portafilter rest. The Portafilter Holder simply bolts on underneath the rest using the same bolts.

Instructions and a two minute video can be found here