autocad 2d module 32 pdf

8/14/2019 Autocad 2d Module 32 PDF

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Learning Outcomes:

AutoCAD Self-paced Learning Modules

AutoCAD 2DModule 32

Drawing Utilities

When you have completed this module, you wil l be able to:

1. Describe the PURGE, RENAME and TIME commands.

Drawing Utilities

It is very important to maintain your drawings and your drawing files on a daily bases. It is veryeasy, while working day-to-day producing drawings, to let things slide and not correct smallitems in the drawings or the drawing files. If left unchecked, that habit can lead to big problemsin the future sometimes almost impossible to fix.

Take a few minutes while working on each drawing to maintain objects, layers, blocks, xref,names, and all the different styles. With drawing files, create an organized logical folderstructure, making more folders rather then less and dividing drawing files into smallerorganized groups. Create a good naming system for your folders and drawings. Give themdescriptive names, ones that can be sorted alphabetically. Remove unwanted files, and keepyour .BAK files under control.

AutoCAD has several utilities that are helpful to organize and maintain your drawings. UseWindows Explorer to maintain the drawing files. In this module, the PURGE, RENAME and

TIME commands are covered to help you in your day-to-day drawing maintenance.

Nested Objects

A nested objectis a named object referencing another named object. One example would be

an object in a block located on layer Object but the block is on layer Block. The Object layerwould appear not to have any objects on it but in fact, an object in the block is on that layer and

that makes it a nested object.

Sometimes it is desirable to nest items to help you draw and design more efficiently. Anexample of this could be as follows: You are drawing an object that has several components.

You draw each component separately and create a block of each. Next, you assemble all theblocks and then make a block of the assembly. The blocks inserted in the assembly block arenested blocks. Nested objects are not necessarily a bad thing, but they can cause problem ifthey are not used correctly or the operator is careless with them.

AutoCAD does not allow you to make a block that references itself. An example of this wouldbe if you tried to create a block using an object that contained a block with the same name.

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32 - 2 AutoCAD Self-paced Learning Modules - AutoCAD 2D - Revised 2007-04-14

AutoCAD Command: TIMEThe TIME command is used to display and track the amount of time the active drawing isactivated.

Shortcut: none

AutoCAD Command: PURGEThe PURGE command is used to remove unwanted block definitions, dimension styles, layers,linetypes, mline styles, plot styles, shapes and text styles.

Shortcut: PU

AutoCAD Command: RENAMEThe RENAME command is used to rename block definitions,dimension styles, layers, linetypes, text styles, UCS's,viewports and views.

Shortcut: REN



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AutoCAD Self-paced Learning Modules - AutoCAD 2D - Revised 2007-04-14

Using the TIME, PURGE and RENAME Commands

Step 1 Start a new drawing using the template Module Template A.

Step 2 Save and name the drawing

AutoCAD 2D Workalong 32-1.

Step 3 Create the layers and assign

the colors as shown in Figure Step 3.

Step 4 Enter the TIME command

shown below. Your answers will differ

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from this example.

Command: TIME

Figure Step 3

Current time: Wednesday, March 01, 2006 11:49:30:937 AMTimes for this drawing:Created: Wednesday, March 01, 2006 11:48:42:453 AM

Last updated: Wednesday, March 01, 2006 11:48:42:453 AMTotal editing time: 0 days 00:00:48:672Elapsed timer (on): 0 days 00:00:48:484Next automatic save in: 0 days 00:09:13:172Enter option [Display/ON/OFF/Reset]:Command:

Step 5 Enter the PURGE command. It willopen the Purge dialogue box as shown inFigure Step 5.

Step 6 Ensure that the View items you

can purge is enabled as shown in Figure

Step 6.

Figure Step 6

Authors Comments:

You can only purge items from a drawing ifthey are not being used at the time. Forexample, items that CAN be purged is ablock that is defined but is not inserted inthe drawing or a layer that was created butthere are no objects on that layer. The list

of items that can be purged will display inthe dialogue box with a + (plus sign) in

front of the item.

...continued on page 32-4

Drawing Utilities

Figure Step 5

The CAD Guys Ltd. Copyright 1993 - 2007 Module 32
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Using the TIME, PURGE and RENAME Commands - Continued

Step 7 Expand All items and then Blocks

by clicking the + (plus sign) beside each.When you see the - (minus sign), the item

is expanded and will display all of thenames that can be purged from that item.See Figure Step 7.

Figure Step 7

Step 8 All of the blocks in the Block

Definition table that are NOT inserted inthe drawing will display as shown in

Figure Step 8.

Step 9 Click the Purge All button as a

shown in Figure Step 9A. When asked toconfirm the purging, click Yes to All. SeeFigure Step 9B.

Figure Step 8

Figure

Step 9A

Figure Step 9B

Step 10 Enable View items you cannot

purge button as shown in Figure 10A.The items you CANNOT purge willdisplay in the Purge dialogue box asshown in Figure Step 10B.

Figure Step 10A

Figure Step 10B...continued on page 32-5



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32 - 5

Step 11 Enter the TIME command again as shown below. Your answers will br different

from the ones shown below.

Command: TIME

Current time: Wednesday, March 01, 2006 2:04:49:703 PMTimes for this drawing:Created: Wednesday, March 01, 2006 1:21:07:562 PMLast updated: Wednesday, March 01, 2006 1:21:07:562 PMTotal editing time: 0 days 00:43:42:157Elapsed timer (on): 0 days 00:43:42:141Next automatic save in:

Enter option [Display/ON/OFF/Reset]: R(Reset the timer to zero. This is an elapsed timer which allows you to time a special event while thetotal time the drawing is active is also being timed.)

Enter option [Display/ON/OFF/Reset]: D(The Display option simply forces the command line to display the time values.)

Current time: Wednesday, March 01, 2006 2:05:08:312 PM

Times for this drawing:Created: Wednesday, March 01, 2006 1:21:07:562 PMLast updated: Wednesday, March 01, 2006 1:21:07:562 PMTotal editing time: 0 days 00:44:00:766Elapsed timer (on): 0 days 00:00:08:437Next automatic save in:Enter option [Display/ON/OFF/Reset]:Command:

Step 12 On layer 0, draw the three objects

shown in Figure Step 12. Draw the circle1 unit in diameter and the length of eachside of the square and the diamond 1 unit.

It is not important where you draw them.Step 13 Create blocks from each shape

naming them Circle, Square and Diamond.Delete the object when you create the Figure Step 12block for each. Your drawing will now appear blank except for the border and the titleblock.

Step 14 Check to ensure the blocks were created by entering the INSERT command. In

the Insert dialogue box, you should see the three blocks as shown in the Figure Step 14.

Figure Step 14




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Step 15 Enter the RENAME

command. It will open theRename dialogue box. Click

Blocks in the Named Objectscolumn, The three blocks youcreated in Step 12 will display inthe Items column. See FigureStep 15.

Figure Step 15

Step 16 Click the name Diamond as shown in Figure Step 15. Note how it now appearsin the Old Name: box. See Figure Step 16.

Figure Step 16

Step 17 Enter the new name Rotated Square in the Rename To: box as shown in Figure

Step 16. Click the Rename To, Figure Step 17A, box to execute the name change. Therenamed block will now appear in the Items box as shown in Figure Step 17B.

Figure Step 17A

Figure Step 17B




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32 - 7

Step 18 Using the INSERT command,

insert the block Square and RotatedSquare. The location you insert them is

not important. Your drawing shouldappear similar toFigure Step 18.

Step 19 Enter

the PURGEcommand.Enable Viewitems you canpurge. Expandthe item Blocksand the Circle

block shoulddisplay as

Figure Step 18

Command: TIME

Figure Step 19

shown in Figure Step 19.

Step 20 Using what you learned

earlier in this workalong, purge the blockCircle from the drawing.

Step 21 Enter the TIME command for

the third time in this workalong as

shown below.

Current time: Wednesday, March 01, 2006 2:30:21:015 PMTimes for this drawing:Created: Wednesday, March 01, 2006 1:21:07:562 PM

Last updated: Wednesday, March 01, 2006 1:21:07:562 PM

Total editing time : 0 days 01:09:13:485Elapsed timer (on): 0 days 00:25:21:156Next automatic save in: 0 days 00:02:58:672Command:

Step 22 Find the following answers in your drawing:

A) Total editing time in the drawing: ________________________

B) Time in Elapsed timer: _________________

Step 23 Save and close the drawing.

The PURGE command removes unwanted items from the drawing. In

some cases, it is the only way to remove them. If an item is being used, itcannot be purged. For example, a layer with an object on it cannot bepurged, nor a block definition that has been inserted onto the drawing.



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Drafting Lesson

Cross Sections - Part 2

Types of Section Views

There are many types of section views that

can be drawn. Thefull, half, aligned andrevolvedsections are shown below. They areused mainly to section symmetrical objects.

Full Section

A full section is the most commonly used

section. It cuts completely through the objectalong the cutting plane.

Half Section

The half section only cuts through half of the

object. It is used when a symmetrical objectwould be the same on both sides.

Aligned Section

An aligned section is when spokes are aligned

to line up with the cutting plane on symmetricalobjects. Take note how the spokes are not onthe cutting plane but they are aligned andsectioned as if they were.

Revolved Section

A revolved section is a simple way to show

the shape of anobject like aspoke. Revolvethe section righton the object asshown.



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When entering names for drawings, blocks, layers and other items, it is

important to name them so they are descriptive and can be found easily.

Naming them so they group together or are easy to find in a search isimportant. Also you want them to

be unique to your company andlisted in the best alphabetical order. Let's assume

you are a house designer and the name of yourcompany is House Designer Ltd. For a namingscheme on layers in your drawings you might wantto name all your layers starting with HDL. Such asHDL Floor Plan, HDL Furniture, etc. Notice howthey appear on the layer list on the right and howthey are grouped together, easy to find and uniqueto your company.

To name the drawings you create for your company. Use a

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naming scheme such as HDL House 0203, HDL House 3252, HDLHouse 2143 etc. On the left is a partial list of how your drawingfiles would appear in Windows Explorer.

When an item you wish to purge from

a drawing is listed in the items you

cannot purge, click the item andPurge dialogue box will display tipswhy the item cannot be purged as you can see below.

Using these tips, you can then figure out what changes

have to made to the drawing before the items can bepurged.

The Key Principles in Module 32

1. The PURGE command removes unwanted items from the drawing. In some cases, it is

the only way to remove them. If an item is being used, it cannot be purged.



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Lab Exercise 32-1

Drawing Specifications

Time Allowed: 50 Min.

Name Template Units Text Style Font

AutoCAD 2D Lab 32-1 Module Template A2 inches N/A N/A

Note: Color, Linetype, and Lineweight are all ByLayer unless otherwise instructed.

Layering Scheme

Objects on Layer Name Color Linetype Lineweight

Construction Objects

Hidden Lines

All Objects

Hatch Patterns

Instructions:

Construction

Hidden

Object

Hatch

253

Blue

Red

200

Continuous

Hidden

Continuous

Continuous

N/A

N/A

N/A

N/A

1. Draw the front and right side view as shown in the object below.

2. Add a full section and a half section as shown on page 32-11.Use ANSI32 hatching pattern.

Detail of Keyway



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View Spacing

Rotated View - Rotated View -

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Isometric View -Solid Model

Drawing Utilities

Solid Model

Completed Drawing

The CAD Guys Ltd. Copyright 1993 - 2007

Solid Model

Module 32


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Lab Exercise 32-2

Drawing Specifications

Time Allowed: 45 Min.

Name Template Units Text Style Font

AutoCAD 2D Lab 32-2 N/A Feet/Inches N/A N/A

Note: Color, Linetype, and Lineweight are all ByLayer unless otherwise instructed.

Layering Scheme

Objects on Layer Name Color Linetype Lineweight

Construction Objects

Walls

Furniture

Instructions:

Construction

Wall

Furniture

253

Red

Blue

Continuous

Continuous

Continuous

N/A

N/A

N/A

1. Open the drawing AutoCAD 2D Lab 30-1.2. Save the drawing as AutoCAD 2D Lab 32-2.

3. Reset the elapsed timer to zero.4. On layer 0, set to color white/black, draw the plant shown on theright. Hint: Draw a circle and one-quarter of the inside. Then arrayit. Draw it by eye using lines.

5. Redefine the block in the drawing named Plant. That will changeall the Plant blocks in the drawing as shown below.

6. Delete all the File Cabinet blocks that are on the drawing.7. Purge the File Cabinet block from your drawing.8. Rename the following blocks:

Desk to 48X28 DeskConference Table to 10 Ft. Diameter Table

9. Using the elapsed timer, find out how much time this lab took you.Time Taken: _________________

Drawing Utilities The CAD Guys Ltd. Copyright 1993 - 2007

Plant

Hint

Module 32

autocad 2d module 32 pdf

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