DFTG-1309 – Basic CADPrepared by Trung Bui, Instructor
_________________________________
Session 5
Drawing Rectangles, Polygons
Editing 4
Isometric Views
AutoCAD 2018 and Its Applications Comprehensive:
25th Ed. Ch. 4: p. 95 (Drawing)
Ch. 11: p. 305 (Editing)
Ch. 8: p. 221 (Isometric View)
17-1107
Contents
1. Drawing rectangles, Polygons
2. Editing 4 (Divide, Trim, Extend, Stretch, Lengthen,
Fillet, Chamfer)
3. Isometric Views
4. Assignment 5A, 5B, 5C
6. Drawing Rectangles
Drawing rectangles have 2 options.
1. Drawing Rectangle from 2 opposite corner:
We have 2 options for corner, they are chamfer and
fillet
First corner point second corner point
6. Drawing Rectangles
We have 2 options for thickness .5 it was viewed in 2D
But in 3D
6. Drawing Rectangles
type w (width), type .5
But need set chamfer =0type c (chamfer), fillet =0 type f (fillet)
and type t (thickness) thickness=0.
6. Drawing Rectangles
2. Drawing Rectangle from length and width:
Drawing the Rectangles
In class practice
In this Section, I show you how to draw the
Rectangles be shown below:
1. Type units
Return AutoCAD 2018 to draw
Pick
First set up Units
5. Drawing Regular Polygons
We have 2 options.
1. Inscribed circle
or
5. Drawing Regular Polygons
2. Circumscribed circle
or
Drawing the Polygon
In class practice
In this Section, I show you how to draw the Polygon
be shown below:
1. Type units
Return AutoCAD 2018 to draw
Pick
First set up Units
9. Dividing Objects
Type div↓
Pick object
Type 4↓
Editing (Cont.)
In this section, I show you how to Divide object
have been drawn below.
Return AutoCAD 2018
10.Trimming Objects
Type tr↓,
pick objects
(right click)
Pick objects
To trim
(right click)
Pick object
Pick object to trim
process
process
Result
Result
Trimming Objects
Type tr↓,
pick objects
(right click)
Pick objects
To trim
(right click)
Pick object
Pick object to trim
Resultprocess
Trimming Objects
Type tr↓,
pick objects
(right click)
Pick objects
To trim
(right click)
Pick circle
Pick object to trim
Pick 2 lines
Pick Circle Result
Result
process
Trim the Object
In class practice
In this section, I show you how to trim object
have been drawn below.
Return AutoCAD 2018
In this section, I show you how to trim object
have been drawn below.(select all object)
Return AutoCAD 2018
11.Extending Objects
Type ex↓
Select all of objects
(right click)
Hold shift to trim
Pick object to extend
1. Pick object to
extend
Pick object to extend
2. Hold shift + Pick
object to trim it
2. Hold shift + Pick
object to trim it
Resultprocess
Extending Objects
Type ex↓
Select all of objects
(right click)
Hold shift to trim
Pick object to extend
1. Pick 2 object to extend
Pick 2 object to extend
2. Hold shift + Pick
object to trim it
2. Hold shift + Pick
object to trim it
Resultprocess
Extend the Object
In class practice
In this section, I show you how to Extend object
have been drawn below.
Return AutoCAD 2018
12.Stretching Objects
Select object, move the cursor close the point of object that need
stretch pick stretch and
move cursor out
Do same for circle
process
process
Result
Result
Stretching Objects
Do same for rectangle Result
Result
process
Stretching Objects
Do same for rectangle with vertex
Do same for below shape
Result
Result
process
process
Stretching Objects
Do same for below shape with add vertex
Do same for shape with remove vertex
Result
Result
process
process
Stretch the Object
In class practice
In this section, I show you how to Stretch object
have been drawn below.
Return AutoCAD 2018
13.Lengthening Objects
Select object, move the cursor close the point of object that need
Lengthen pick lengthen
Move cursor out
And right click
Do same for circle
Result
process
process
Lengthening Objects
Move cursor out
And left click
Do same for ellipse
Move cursor down and right click
Result
Resultprocess
Lengthen the Object
In class practice
In this section, I show you how to lengthen object
have been drawn below.
Return AutoCAD 2018
Example
Redraw the circle R=1 with center lines
Type c↓, and the center lines
stretch the center lines more 3/8” at 2 side
Example
Redraw the circle R=1 with center lines
Type c↓, and the center lines
stretch the center lines more 3/8” at right side,type 3/8↓
Example
Do same for left side circle
For top circle
For bottom circle
14.Filleting Objects
Type f↓, we need setting mode=trim,radius=0 (type t,r)
Pick all objects
(right click)
Trim the
line 1
Extend the
line 2
Extend the
line 2
Result
Result
process
process
Filleting Objects
Pick the first line is important to trim second lineTrim the
left line 1
Pick 1
Pick 1
Pick 2
Pick 2
Trim the
right line 1
Result
Result
process
process
Filleting Objects
Setting radius :Type f↓, r↓, number↓
Pick all objects
(right click)
curve line 2 Trim line 1
curve line 2
Result
Result
process
process
Filleting Objects
Setting Trim :Type t↓,select no trim with radius
No Trim
No Trim
Result
Result
process
process
Fillet the Object
In class practice
In this section, I show you how to Fillet object
have been drawn below.
Return AutoCAD 2018
15.Chamfering Objects
Type cha↓, we need set mode chamfer distances, with trim
Pick object
(right click) Pick 1
Pick 2
Resultprocess
Pick 1
Pick 2
Pick 1
Pick 2
Chamfering Objects
Setting distances :Type d ↓,
type number 1↓(for d1)
type 2 (for d2)
Result
processPick 1
Pick 2
Pick 1
Pick 2
Chamfering Objects
Setting angle :Type a ↓,
type number 1↓(for d1)
type 2 (for angle with d1)
Resultprocess
Pick 1
Pick 2
Pick 1
Pick 2
Chamfering Objects
Setting Trim :Type t ↓, select notrim
Resultprocess
Pick 1
Pick 2
Pick 1
Pick 2
Chamfer the Object
In class practice
In this section, I show you how to Chamfer object
have been drawn below.
Return AutoCAD 2018
Multiview Drawing (Cont.)
2. Draw Isometric View:
Step 1: Isometric view is 2D drawing but look like 3D inclusion
Isoplane left, right, top. They were drawn on ox, oy, oz.
Setting Isometric view: type os↓ (set snap) or pick polar tracking,
pick tracking setting
Multiview Drawing (Cont.)
Left click Isometric snap
We got Isoplane left (press F5 to change it)
Multiview Drawing (Cont.)
We got Isoplane right (press F5 to change it)
Isoplane top
Multiview Drawing (Cont.)
Step 2: the ver / hor lines be drawn with F8 on, Snap point on
and F5 to change Isoplane
Step 3: the oblique lines be drawn pass 2 point that they will be
specify ver /hor.
Multiview Drawing (Cont.)
Example: Redraw the part. Don’t include dimensions.
Step 1: Set Isometric view
To see easily we set isoplane left
be blue plane.
Isoplane top be yellow,
Isoplane right be red.
Example:
Step 2: Let draw the shape on isoplane left
(the ver / hor lines be drawn with F8 on, Snap
point on and F5 to change Isoplane)
Press F5 to select iso-left,
(object layer)
Type L↓, move the cursor up
Type 6↓
Example:
Move the cursor to right
Type 3↓
Example:
Move the cursor down
Type 3↓
Example:
Move the cursor to right
Type 2↓
Example:
Move the cursor down
Type 3↓
Example:
Move the cursor to left
Snap to start (right click)
Example:
Press F5 to select iso-top,
Type L↓, move the cursor
To snap the top corner
Example:
Move the cursor up
Type 6↓
Example:
Move the cursor down
Type 3↓
Example:
Move the cursor to left
To snap the corner
Right click
Example:
Type L ↓ ,move to the corner to snap it
Example:
Move the cursor to right
Type 2↓
Example:
Move the cursor down
Type 4↓
Example:
Move the cursor up
Type 4↓
Example:
Move the cursor to left
Type 6↓
Example:
Move to the corner to snap it
Example:
Press F5 to select iso-right,
Type L↓, move the cursor
To snap the top corner
Example:
Move the cursor down
Type 3↓
Example:
Move the cursor left
Type 4↓
Example:
Move to the corner to snap it
Right click
Example:
Type L↓, move the cursor
To snap the top corner
Example:
Move the cursor down
Type 3↓
Example:
Move the cursor left
To snap the corner
Example:
Type L↓ to connect 2 point
Example:
Step 4: drawing the circle on isometric view
On Isoplane left, Pick center layer to draw center mark of circle.
Pick object layer
Type el↓,
Type i ↓
Multiview Drawing (Cont.)
Pick center point of ellipse
Type radius↓
Multiview Drawing (Cont.)
On Isoplane top, Pick center layer to draw center mark of
circle.
Pick object layer
Type el↓,
Type i ↓
Pick center point of ellipse
Multiview Drawing (Cont.)
Type radius↓
On Isoplane right, Pick center layer to draw center mark of
circle.
Multiview Drawing (Cont.)
Pick object layer
Type el↓,
Type i ↓
Pick center point of ellipse
Multiview Drawing (Cont.)
In this section, I show you how to Draw the
Isometric Circle have been drawn below.
Return AutoCAD 2018
Assignment 4A
Assignment 4B
Assignment 4C
The End