PPT-Alphabet of lines SKETCHING 101

ALPHABET OF LINES VISABLE OBJECT LINES THICK SOLID LINES SHOWS THE OUTLINE OF THE OBJECT VISIBLE TO THE EYE HIDDEN INVISIBLE LINES SHORT EVENLY SPACED DASHES REPRESENT SURFACES THAT ARE NOT DIRECTLY VISIBLE TO THE EYE. Introduction to Drafting and Design. What is the Alphabet of Lines?. Developed by the American Society of Mechanical Engineers (ASME).. The Alphabet of Lines is used to make a drawing neater and clearer to understand.. ENS 207 engineering graphics. 1. Freehand Sketching. Freehand sketches . are a helpful way to organize your thoughts and record ideas. They provide a quick, low-cost way to explore various solutions to design problems so that the best choices can. “One picture is worth a thousand words.”. Pictorial Sketches. Show shape of object. Show height, width, and depth. Common types:. Isometric. Perspective. Isometric Sketch. Width and depth lines are drawn at 30. Purposes of Sketching. Think through a design. Convey your ideas. Uses lines and symbols to describe a design. Common Uses of Sketching . Brainstorm. Communicate. Document Measurements. Advantages of Sketching. “One picture is worth a thousand words.”. © 2011 Project Lead The Way, Inc.. Design and Modeling. What is the purpose of sketching?. Think through a design. Share ideas. Visualize. Sketching Uses. Multi-View Drawing. Shows two or more two-dimensional views of a three-dimensional object.. Provides the shape description of an object. . When combined with dimensions, serves as the main form of communication between designers and manufacturers.. Examples of Sketching Technique. Good Versus Poor Technique for Drawing Lines. Orthographic Sketches. A type of technical drawing that usually shows three different two dimensional views from different perspectives.. Butterfly Alphabet. © 2012 Project Lead The Way, Inc.. Introduction to Engineering Design. Sketching an Isometric Circle. Circular features and cylindrical forms are common in engineering designs, and appear as . ellipses. Shows two or more two-dimensional views of a three-dimensional object.. Provides the shape description of an object. . When combined with dimensions, serves as the main form of communication between designers and manufacturers.. Design and Modeling. Common Uses of Sketching . Brainstorm. Communicate. Document. Advantages of Hand Sketching. Convenient. Inexpensive. Sketching Techniques. Lines. Vertical Line. Horizontal Line. © 2012 Project Lead The Way, Inc.. Introduction to Engineering Design. Sketching an Isometric Circle. Circular features and cylindrical forms are common in engineering designs, and appear as . ellipses. Basics – treble and bass clef. A note about taking notes--. I will post . powerpoints. on my website for study and/or review.. You should STILL take notes during class.. You may print . powerpoints. Interpret plans, diagrams, and working drawings. .. Apply appropriate technical and graphic communication in the technological systems. .. Identify Line Types for the Alphabet of Lines. Construct lines properly on drawings..