R& During product design, R&D personnel tend to overlook errors in components during CNC machining. The structure of components may have positions that cannot be machined during CNC machining. If the tool has a machining radius, but the position of the component structure happens to be the position that the tool radius cannot machine, this leaves material at the connection of the component structure that the tool radius cannot machine. Below are the methods of avoidance. Remember it and save a lot of money, time, and resources. CNC machine tools provide engineers and mechanics with the simplest way to create metal and polymer components. During CNC machining, R& D R&D personnel should consider the structure and material characteristics of the workpiece, as well as any issues that may arise during CNC machining; For example, thin-walled aluminum processed from low stiffness may break or twist during milling due to excessive vibration. Reducing wall thickness will reduce the stiffness of the material, thereby increasing vibration during processing and reducing the achievable accuracy. One way to overcome this problem is to maintain a low ratio of wall height to thickness (H: T) and wall height to length (H: L) when designing thin-walled sections. The minimum wall thickness for unofficial industry standards is 0.794 millimeters. However, thin walls are often a design requirement. In this case, using other manufacturing processes such as metal sheet manufacturing is more economical. Features that cannot be processed by CNC can be manufactured using other processing techniques; The component features that D (R&D personnel) wants. For example, there should be curved holes on a component. No matter how many degrees of freedom a CNC machine can achieve, it cannot effectively process a curved hole. If the part requires this feature, a method called electrical discharge machining (EDM) can be used