1. Visual track screen design description: when the traditional curved saw is in use, the human body always leans forward or sideways to observe the track line. when the machine is still running, the cut curve will always be crooked. aiming at this pain point, the designer adds a screen of visual track line on the top of the curved saw and a camera to capture the track line on the upper end of the saw blade, in this way, the user does not need to roll or lean forward to find the track line during operation, so that it is more convenient to directly observe the track line so as to cut the perfect curve. 2. Appearance modeling and product CMF description: The atmosphere that the appearance mainly wants to express is that science and technology are concise. Under the large form performance, the designer has more detailed treatment on the details and technology of the product, such as the thickness and texture treatment on the mold of the handle material texture, and so on to highlight the details. 3. Product function: with bevel cutting function and knife lifting adjustment, dust suction pipe design, battery pack detachable, boot with lock and twist protection function.