Create Block Definition

Home tab > Block panel > Create

Name: Chair

Base point: Pick point

Pick the midpoint of the front line

Retain option

Objects: Retain
Behavior: Allow Exploding
Description: Desk Chair
Click Select objects

Cross-select the chair

9 objects selected
An image display beside the block name
Click OK

All parts of chair remain separate

Convert to Block option

Add a line below the arc

Name: Home Chair
Pick the same base point
Objects: Convert to Block
Check Scale uniformly
Description: Home chair with cushion
Clock Select objects

Cross-select the chair

10 objecte selected
An image display beside the block name
Click OK

All objects group into one
A grip show the insert point of the block

Delete option

Delete the right and left edges
Draw arcs by Start-End-Radius 1100

Start the blcok Create command
Name: ECO Chair
Pick the same base point
Objects: Delete
Uncheck both Scale uniformly & Allow Exploding
Description: Office chair with ECO leather
Click Select objects

Cross-select all parts of the chair

10 objects selected
An image display beside the block name
Click OK

The block delete from the drawing

Create another block
Name: Door
Base point: lower-right corner of the rectangle
Objects: Convert to Block

Object Options

Retain: Retain the geometries as seaprate, so can modify and create another similar blcok
Convert to Block: Use the block after created
Delete: Delete block from the drawing, so got more space to draw or create blocks

Insert Block

Set the current layer to Furniture

Home tab > Block panel > Insert - More Options

Name: Chair

Uncheck Uniform Scale
X: 1.5
Angle: 90

Insert the block

Set the current layer to Drafting

Name: Home Chair
X: 1.5 (Uniform Scale is locked)
Angle: -90

Insert the chair

Set current layer to Desk

Name: ECO Chair
Rotation: Specify on screen

Pick a point
Rotate angle by object snap override Parallel

Parallel to the reception desk

Write Block

Write blcok outside the current drawing as global block
Can be insert into any drawing

Insert tab > Block Definition panel > Write Block

Source: Block

Destination: Any location in the harddisk

Editing Block

Edit the block definition and update the instances of the block within the drawing

Open Ex 07.1-Start.dwg

Home tab > Block panel > Insert - More Options

Click Browse

Navigate to the file location

Select Chair.dwg

Path location display to show that this is a global block
Angle: 180

Insert the chair below the desk 20 cm from the midpoint

Insert 2 more chairs above the desk

Double-click any chair to bring out "Edit Block Definition" gialog box
Click OK

Block Editor open
All other objects disappear except the chair
The Chair block become separate for editing
Add 2 Arm-rest:
Rectangle 70 x 250
Fillet all corners @ R30

Close panel > Close Block Editor

Click "Save the changes to Chair"

The instances of the block updated to show the changes

Redefine Block

Redefine block by global block

Start Write Block command

Select the existing block
Destination: Any location in the harddisk
Click OK

Click "Replace the existing ..."

Navigate to the drawing that created the 1st Chair block

Home tab > Block panel > Insert - More Options

Click Browse

Navigate to the location where you write the block

Path display to show this is a golbal block
Rotation: Specify on screen

Click Redefine block

The blocks with the same name updated to the new design

Insert the chair in front of the reception by parallel object snap

Insert another chair