Machine Drawing

(avery) #1

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.

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