This coffee grinder have a dosing system built-in. We won't using this carousel and it was easier to have a dose free system, so that we can fill a mason jar before going to the coffee machine. This part can replace the dosing carousel for just a simple funnel. There's probably not a lot of people having the same problem with the same specific coffee grinder, but at least it can maybe give some ideas. Nothing fancy ;)If you have the same machine you can remove everything with an allen key and a phillips screwdriver. You also can re-use the same screws to put this part unto your machine. The square one is the one that worked the best for us.