Extension tube for Rocky Rancilio

Extension ring tube for Rocky Rancilio coffee bean grinder. The new hopper capacity is about 1.3 pounds of bean weight before roasting. I roast coffee beans in 1 pound batches and the original hopper is smaller that 1 pound. So rather than having a partially full cup of roasted beans on the counter I designed the extension.

The extension tube has a snug friction fit to the existing hopper and an easy fit to the existing lid.

Printed on a Cetus3d MK2