I designed this vacuum adapter for a Fellow Ode 2 grinder. It is designed to fit over the exit chute to suck any old coffee grounds out. The before/after pictures are from a Ode Gen 1 over which it also fits nicely.

There are some bellow designs but I felt this might just be easier and more effective.

The adapter fits on a usual 34mm vacuum hose. I use it with another adapter on my Xiaomi handheld vacuum using an adapter based on: https://www.printables.com/model/313124-xiaomi-mi-vacuum-adapter

I printed this with supports. I recommend printing this upright, i.e., standing on the part that attaches to the vacuum. 

I printed using PLA with otherwise default settings on my Bamboo Lab A1 mini.

Changelog: