2-DIMENSIONAL DRAFTING SOFT-WARES FOR MECHANICAL DRAWING

Abstract

The drawing is the most important product of the design process in Mechanical Engineering. Drawing documentation constitutes a link between the design office and the manufacture. Traditional industrial drafters spend lot of time in the process of produce it and development including design. The implementation to CAD changes this pattern and. alteration in drawings for modified design can be accomplished much more rapidly_ The work presented in this thesis develop variety of modules required in drawing in the orthographic views of an object. The programs algorithm is such that the portion to be drawn is identified and subsequently image is drawn/created, during the development of these module, portability facotr is also considered so that such a package should at the same time enable the application of plotters of various firms_ together with their basic software. As followed by most common graphical systems, in this thesis hierarchy approach is followed to draw the complex drawings. iii iv Realizing the need of solid modelling in CAD/CAM activities, an initiation is taken to develop 3-D modules. In the present work simple brick modules and their assembly is demonstrated. To have infra structure for FEM grid generation and other integrated shapes of these modules. The application of the method to some practical cases has shown that 2-D drafting can be achieved at high speed, satisfying requirements of an interactive CAD environment.