2 1 Chapter Objectives

After completing this chapter you will be able to:

1. Know how to construct basic 2D wireframe geometric entities such as points, lines, arcs, fillets and splines.

2. Execute rectangle, chamfer and letter constructions in 2D space.

3. Know how to construct 2D ellipse and polygon geometric entities.

4. Understand how to use Mastercam s point positioning commands to quickly and accurately locate points on existing geometric entities.

5. Explain how to pan and zoom screen displays.

6. State the methods used for repainting and regenerating the screen displays.