Graphics
* Freehand drawing is concerned with presenting ideas quickly and clearly * It is much easier to produce and alter a sketch rather than an accurate drawing especially when drawn on site. * Sketching the solution to any design and/or drawing problem helps in sorting out initial problems as well as the communication of ideas during research and investigation. * ------------------------------------------------- It is important to be able to read and communicate via drawing. Some suggestions for accurate freehand drawing: * Always make a light drawing to check proportions before firming in. * When drawing move the arm as well as the hand. * ------------------------------------------------- Do sketching on grid paper for better accuracy * There are two ways to communicate graphically: (i) Pictorial drawings- which show 3D from one view. (ii) Orthogonal drawings- which show 2D from multiple views. * Pictorial drawings are good for concept drawings as well as for communicating ideas and designs to people who are not experienced in reading drawings. * The three main types of pictorial drawings are: Isometric, Oblique and Perspective projections. * Graphical communicators enhance pictorial drawings by doing Shadow lines, Highlight lines and Shading. To sketch an isometric drawing: * Step 1: Draw the isometric shape. * Step 2: Draw the front face * Step 3: Draw the lines showing depth * Step 4: Draw the remaining lines and firm in * Basic tools to make graphics: Graphic markers, coloured pencils, scissors, chalk, correction pen (tippex) etc.
Sketching oblique drawings: * Step 1: Lightly draw the front face * Step 2: Project half the depth at 45° * Step 3: Draw the other details * Step 4: Firm in using correct thickness lines