Designing a Windshield for a Toy Race Car Trong chương này, bạn sẽ tạo ra một mô hình vững chắc của một kính chắn gió cho một chiếc xe đồ chơi. Bạn sẽ xây dựng mô hình này từ hình học wireframe hiện có và từ các vòng tròn mà bạn tạo ra để xác định hình dạng cong của kính chắn gió. Bạn sẽ xây dựng về các kỹ năng mà bạn đã học trong chương trước và học các kỹ năng mới, chẳng hạn như: Tạo một cơ sở vững chắc (Loft) Thay đổi cường độ ánh sáng trên chất. | Designing a Windshield for a Toy Race Car 6 Designing a Windshield for a Toy Race Car In this chapter you will create a solid model of a windshield for a toy car. You will build this model from existing wireframe geometry and from circles that you create to define the windshield s curved shape. You will build on skills that you learned in previous chapters and learn new skills such as Creating a base solid Loft Changing the light intensity on the shaded solid Removing select defining curves from the solid Exercise 1 - Defining the windshield s shape In this exercise you will create circles along a spline at six pre-defined points. The circles will form cross-sections of the windshield and define the windshield s basic shape. Before you create the circles however you will set the construction plane Cplane and construction depth Z . Mastercam Version 9 Solids Tutorial 125 Chapter 6 Up to this point in the tutorial you have not been concerned with the construction settings because Mastercam uses the plane and depth of the underlying curve geometry when constructing solids. However Mastercam creates wireframe geometry lines arcs splines on the plane and at the depth that you define. Note The current construction settings are reflected on the Cplane and Z buttons on the Secondary Menu. Setting the construction plane and depth You will set the construction plane to right side view and set the depth based on the midpoint of an existing line. 1. Open from your working folder. 2. Choose the Cplane button on the Secondary Menu. Cplane s I 3. Choose Side from the Construction Plane menu. Mastercam changes the construction plane to side view. 4. Choose the Z depth button on the Secondary Menu. Mastercam displays the Point Entry menu. 5. Position the cursor halfway along the line shown in the following picture. 6. When the cursor changes to an open square and Mastercam highlights the Midpoint option on the Point Entry menu click to select this .
