Coffee Knock Box for espresso machine

As we got a new espresso machine, we required a knock box to gather the coffee pucks. Therefore I designed one with a neutral design and easy to clean. A lip printed in TPU makes it comfortable to knock the coffee puck off the filter. The box allows for some breathing and avoids the whole hole smelling like coffee. My wife likes it. Happy wife, happy life. CAD-View: I printed the box in ABS and the lip in TPU for optimal results. PLA should work, but I would recommend at least PETG for better heat resistance.