This was my first ever 3D print design. I always wanted a lid for my chemex to prevent coffee getting cold so quickly.

Due to the handmade nature of the chemex glass, I knew it would never fit perfectly. For years I had been using a beautiful piece of thick walnut wood that I had cut into a cylinder with my bandsaw, but the top of the chemex is conical in shape and I thought the 3D printer was the only thing that could slightly match its dimensions. So I made this. As it was my first project it took a very long time to match the dimensions. Cones are difficult things to deal with!

Photo shows two different top layer finishes on the Prusa MK3S.

This isn't the greatest invention in the world, it doesn't really prevent coffee from getting cold :) So it's more form over function, but here it is.