Engineering Design provides learning opportunities for students interested in preparing for careers in the design and production of visual communications. Students plan, prepare, and interpret drawings and models through traditional drafting or computer-aided drafting and design (CADD) techniques.
Prologue: All too often current “CAD” text books concentrate too much on the software and not enough on the basic fundamental principles that are required to create a working industrial drawing. More and more college freshman enter the post-secondary arena knowing one or more cad software packages. A skilled instructor can rapidly get a group of students up to speed on whatever software package that is being used at that institution. However, over the last 25 years it has been my experience that many students only know the software…and not what to do with it. Now, this is not the fault of the technology education teachers in the secondary school system. They are most likely trained with a Charles Prosser philosophy that students leave high school with a set of skills grounded in meeting the needs of industry. However, since very few technology education teachers have actually spent any time in industry as a draftsman, designers, or engineers…the product they produce only knows “some” of what is required to be successful in the post-secondary arena. Make no mistake, this is not something done intentionally…it is simply the way “the American Education System” works. This document and the material contained within is being created to assist in both secondary and post-secondary educators who lack either the educational component of how to facilitate the required material…or more importantly, what that required material is.
This course introduces computer-aided design (CAD) software. Students develop an understanding of the commands needed to produce a two-dimensional drawing. Topics include drawing setup, geometry creating, editing functions, layer techniques, dimensioning, model and paper space, title block creation, and plotting a completed drawing. Other related topics include multi-view drawings, selection and arrangement of orthographic views, section and auxiliary views, and isometric and oblique drawings. Students gain proficiency in the operation of a PC-based CAD system and a functional understanding of basic computer-aided drafting techniques.
Students practice the ability to produce clear, complete, accurate and detailed design drawings through an engineering design challenge. Using only the specified materials, teams are challenged to draw a design for a wind-powered car. Then, they trade engineering drawings with another group and attempt to construct the model cars in order to determine how successfully the original design intentions were communicated through sketches, dimensions and instructions.