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Session 3649

Some New Techniques in Teaching Computer-Assisted Drafting/Design (CADD)

B. S. Sridhara

Middle Tennessee State University (MTSU)

Abstract In our Engineering Technology program, we teach three courses in CADD covering 2-D concepts and solid modeling. AutoCAD and Mechanical Desktop (MDT) are the primary CAD software that we use in our instruction. We want to provide our students with experience in the practical applications of CADD. Dr. Sridhara assisted a local non-profit organization that was landscaping an adult care center and needed help in drawing the layout. A group of eight students from the CADD I class visited the 50-acre campus, took measurements, worked with the organizers, prepared the layout and received credit in their course. Several other students learned their first lesson in Computer-Integrated Manufacturing (CIM). They sent the drawing files via the Internet to the department’s laser engraving machine and created two -dimensional objects which were assembled to create three-dimensional models. In the CADD II class, students created solid models using MDT 5.0, sent the drawing file via the Internet to a local industry. Dr. Sridhara and the students visited the industry where they worked with the manager and technicians and converted the drawing files into SurfCAM files. These files were sent to a CNC machine and the parts were machined. This was a very good experience for the students to learn about CIM in an industrial setting. Students also learned the basics of CIM by sending the MDT files electronically to the department’s rapid prototyping machine and producing physical models. Besides AutoCAD and MDT, Dr. Sridhara also teaches other solid modeling software such as Pro-Engineer and SolidWorks in CADD II and Advanced CAD classes. Students will do at least one project using these software. A group of students worked with a local industry that manufactures kitchen equipment for hospitals and restaurants and designed some parts using SolidWorks. They visited the industry several times and learned about design and fabrication of sheet metal parts. Dr. Sridhara worked with graduate students who take advanced CADD courses and developed lesson plans for Pro-Engineer and MDT for use in the undergraduate classes.

Proceedings of the 2002 American Society for Engineering Education Annual Conference & Exposition Copyright Ó 2002, American Society for Engineering Education

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Sridhara, B. (2002, June), Some New Techniques In Teaching Computer Assisted Drafting/Design (Cadd) Paper presented at 2002 Annual Conference, Montreal, Canada. 10.18260/1-2--10691