Machine Drawing

Computer Aided Draughting 423

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d:\N-Design\Des21-1.pm5

1. Offset distance: a value is to be given

2. Select the object: select by mouse

3. Side to offset: select the side on which one needs the offset

4. Select the object: enter to stop the selection process

By choosing through option,

1. Enter T

2. Select object : pick the object

3. Through point: pick the point

4. Select object: enter to stop the selection process

B D

A

C

4 units

Object

p

Distance Through

Fig. 21.23

Observations: 1. Multiple creations of objects are made easy by selecting the offset distance or

through point

2. Mirror images also are possible

21.19 ELEVATION AND THICKNESS

Features: 1. The command is used to create different objects.

2. By suitably selecting a view point, 3D drawings can be created in AutoCAD

(Fig. 21.24).

Command: ELEV

New current elevation: 0 or any value may be entered

Elevation & thickness View point

Fig. 21.24

New current thickness : 20. This is the value available and it can be changed.

Create an object (top view) say, circle, using circle command and change thickness/elevation or

both for the next object.