A cap for my manual crank burr coffee grinder, since bits fly out of it when you get towards the end. Here's a link to the grinder model: Kyocera Ceramic Coffee Grinder. Updated May 27, 2014: Final version! I've added some instructions for properly scaling the design in MakerWare to get the right fit. I also make the edges smoother in OpenSCAD.I designed this in millimeters using OpenSCAD. For some reason when I import the STL to MakerWare, there's a message saying it's too big for the build platform. So I just let it "scale to fit" then adjust the size in MakerWare using the "Scale" tool. X: 94.00mm Y: 94.00mm Z: 7.00mm