I'm a happy KitchenAid user. We'll have guests for dinner. I have a meat grinder but I do not have the sausage stuffer accessory yet. The local KitchenAid dealer has out of stock. I want to make some sausage filled tenderloins for dinner.Oh wait, I have a 3D printer!-)These parts just plain tubes - I hope I won't violate any patent by publishing these designs.