The Well-cast design is the design that ensures maximum compliance with existing production methods and provides accurate castings at low cost within current conditions. In the production of Casting parts, all expenses except the cost of the casting part belong to the method used. As a Result, the model produces the cost of molding, moulding, and feeder costs. Molds outside of Metal moulds are used once and they are distorted after casting. Metal moulds are continuous and can be reused. Mold removal of the model in Sand molds, and metal molds, the casting part is the basic principle of the solid removal of the mould. Both sand moulds and mold moulds must consist of two or more parts for the model or castings to be easily removed from the mold. The widest section of the Model or casting should be brought to the mold separation surface. Therefore, the model or the casting part should be designed not to be difficult to remove From the mold if possible. In the Design, the indentation or prominance should be avoided in the mold to prevent the model or the casting part from being removed. When the Mold separation surface cannot be placed in the largest dimensions, it is necessary to make the model to be moulded or removed from the mould, or as a macho. In This case, the cost of molding increases.