MEC 120

About Course:

Course Code: MEC 120

Course Name: MECHANICAL ENGINEERING DRAWING I

Credit Hour: 1

Orthographic projection: Six principle views: Top, Front, Right, Left, Rear and Bottom; Glass box approach of orthographic projection; First and Third angle projection; Different types of lines, their uses and their precedence in drawing; Convention of orthographic drawing.

Dimensioning Standard: Use of dimension; Components of linear dimension: dimension line, extension line, arrowhead and dimension text; Unidirectional and aligned dimensioning methods; dimensioning arc, circle, fillet and round; Rules and practices of dimensioning.

Isometric view: Isometric projection; Rules and practices of isometric drawing.

Section view: Cutting line; Cutting Plane; Different types of sections; Section lining; Rules and practices of section view.

Introduction to AutoCAD: Introduction of AutoCAD work environment; Use of GRID, ORTHO, SNAP tools; Drawing of line, poly line, circle, rectangle, Editing of drawing using trim, offset extend tools; Linear and circular dimensioning in AutoCAD.

Course Outcomes (COs):

1. Sketch and understand orthographic projections

2. Put dimensions on the drawing and understand dimensioning

3. Sketch and understand the Isometric and Perspective views of objects

4. Sketch and understand the sectioned view

5. Sketch on AutoCAD, learn different commands, tools and views

Targeted Program Outcomes (POs): PO3, PO5

Lecture Materials:

1. Lecture Slides