Introduction to AutoCAD 2011- P13: The purpose of writing this book is to produce a text suitable for students in Further and/or Higher Education who are required to learn how to use the computer-aided design (CAD) software package AutoCAD 2011. Students taking examinations based on CAD will find the contents of the book of great assistance. | 364 Introduction to AutoCAD 2011 Fig. Exercise 6 7. An orthographic projection of the parts of a lathe steady is given in Fig. . From the dimensions shown in the drawing construct an assembled 3D model of the lathe steady. When the 3D model has been completed add suitable lighting and materials and render the model Fig. . Fig. Exercise 7 - details Three-dimensional space 365 Fig. Exercise 7 - a rendering 8. Construct suitable polylines to sizes of your own discretion in order to form the two surfaces to form the box shape shown in Fig. with the aid of the Rulesurf tool. Add lighting and a material and render the surfaces so formed. Construct another three Edgesurf surfaces to form a lid for the box. Place the surface in a position above the box add a material and render Fig. . Fig. Exercise 8 - the box Fig. Exercise 8 - the box and its lid 9. Fig. shows a polyline for each of the 4 objects from which the surface shown in Fig. was obtained. Construct the surface and shade in Shades of Gray. 80 80 80 80 Fig. Exercise 9 - one of the polylines from which the surface was obtained 366 Introduction to AutoCAD 2011 Fig. Exercise 9 10. The surface model for this exercise was constructed from three Edgesurf surfaces working to the suggested objects for the surface as shown in Fig. . The sizes of the outlines of the objects in each case are left to your discretion. Fig. shows the completed surface model. Fig. shows the three surfaces of the model separated from each other. Fig. Outlines for the three surfaces Fig. Exercise 10 Fig. The three .
