A simple product has a simple design, e.g., a hollow cylinder, while a complex product has a complex design, e.g., a turbine blade. A hollow cylinder has a simple design; therefore, it can be fabricated easily. Vice versa, if the cylinder can be fabricated easily, it is a confirmation that its design is simple for AM. To verify its fabrication, it can be checked how an extrusion deposition system will fabricate it. The system’s nozzle will deposit a material by moving in a circle and then repeating the step by moving up—this is simple, requiring simple, predictable data. The data will consist of the diameter of the circle and the height of each increment—both values remain the same for each layer. Therefore, there is no need to make a design; the operator can visualize it without the help of software. Again, there is no need for software to convert the design into machine-readable instructions; the operator can provide the instructions by inputting the data.