Projection of Straight Lines
Introduction A line may be defined as the locus of a point moving along a fixed path. A line consists of a number of points; its projections are drawn by…
Projections of Points
Point A point usually represented by a dot is a dimensionless geometrical entity that has a position but no magnitude. Whereas in computer aided engineering drawing the point has dimension…
ORTHOGRAPHIC PROJECTIONS
Projections Projection As per the optical physics, projection is a process of causing an image by rays of light taken in a particular direction from an object to a picture…
Geometrical Constructions
Introduction Engineering drawing consists of a number of geometrical Constructions. A few methods are illustrated here without mathematical proofs. 1. To divide a straight line 65 mm into a given number…
Starting a new Drawing
When starting a new drawing (QNEW), you have a choice of either starting from the Create New Drawing window or the Select Template window. The Create New Drawing window allows…
Editing Commands (Modify Commands)
Quick access toolbar The Quick Access toolbar, displayed in the Drafting & Annotation workspace, is located at the very top of the drawing window next to the Application button. The…
Drafting Aids
1. Limits Drawing limits are used to set the boundaries of the drawing. The drawing boundaries are usually set to match the size of a sheet of drawing paper. This…
Draw Commands
1. Point: The Point command will insert a point marker in your drawing at a position which you pick or at any coordinate location which you enter in the Command…
AutoCAD Installation Process
1. Go to the following website: https://www.autodesk.com/education/free-software/all 2. Click AutoCAD 3. Create your login account using the MRCET mail id. xyz@mrcet.ac.in (you can access the software for 3 Years). 4.…
DIMENSIONING
A drawing describes the shape of an object. For complete details of an object, its size description is also required. The information like distance between surfaces and edges with tolerance,…
