QuickStart CAD
In many different disciplines, the advent of CAD has radically
changed the way professionals work. Most project managers now
expect that some type of CAD software will be used to create
drawings describing professional design work. Managers and
clients also assume that the work you do will be delivered in
both printed and electronic format. So, in most
professions, producing design work on paper drawings alone is no
longer acceptable.
This change in attitude has major implications for many of us. If
you are working, or intend to work, in the Architecture,
Engineering or Construction industry, you need to be able to
produce CAD drawings if required. It goes without saying that you
need to learn to do this efficiently, making the CAD software
work hard for you, not the other way around.
We offer a sequence of courses leading to CAD competency. This
course is part 1 of a series of four courses. It can however be
used as a stand alone introduction to CAD.
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QuickStart CAD
>> (this course which provides and overview of the
principles and operation of AutoCAD and IntelliCAD
software)
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Basic CAD 1
>> (a course focusing on CAD drawing
skills)
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Basic CAD 2
>> (a course which emphasizes editing CAD
drawings)
-
Paper Space &
Model Space (a course focusing on the presentation
of design work)
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If you have broadband access, click here to download a movie showing
CAD in action. We look at a number of CAD drawings
from different disciplines: landscape, landscape
architecture, mechanical engineering, electrical
schematics, instrument loop drawings, civil road
design drawings and 3D representations of traffic
control devices. We use many similar movies to teach
you how to create CAD drawings.
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Click
here to play a movie on a more esoteric aspect of
CAD use - we explain how the REDRAW command
works.
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Both movies should give
you a good appreciation of our methodology and ensure that your
equipment works at an acceptable speed for our learning
systems.
Here is a quote from a student
satisfied with the course ' .. as I go thought the
couse, I am really enjoying the material - top marks for layout.
Very easy to follow.'
Note that this course
teaches you to use AutoCAD and/or IntelliCAD to produce CAD drawings.
It does not cover the use of competing software such as GardenCAD
MicroStation, TurboCAD. We assume that you have has some
exposure to reading technical drawing and can use a computer at a
basic level (create and save files). This courses is
intended for users of Windows computers, not Apple
Macintosh computers.
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Preliminaries
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Setting up your CAD workstation.
Operating systems and CAD workstations - Windows 95,
98, 2000, XP, XP Pro and Vista. Setting screen
resolution. The value of using setting up and using
dual monitors in your CAD workstation. Selecting the
correct pointing device mice and digitizers. Creating
the correct environment for CAD by configuring your CAD software.
Setting the time interval for automatic backup.
Installing CAD software. Protecting the unlock codes
for your CAD software. Tuning and maintaining your
CAD workstation. Making a suitable folder structure
& filing system for CAD drawings. Starting a
dialogue with your on-line CAD tutor.
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The CAD process
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A detailed look at some CAD drawings from different
disciplines - architectural, mechanical,
instrumentation, survey, civil, landscape, planning
etc. Comparing AutoCAD to IntelliCAD. Drafting on
paper vs. drafting using CAD software? Some advice on
how to learn CAD software. The importance of 'Real
World Units'. How to handle scale in CAD drawings. An
example of the use of the AutoLISP programming
language to speed the drafting process - automating
CAD. Some comments on data extraction and creating
bills of materials from CAD drawings. The importance
of the command area and recognizing that unlike the
Microsoft Office suite of applications, AutoCAD and
IntelliCAD are command driven programs. The
advantages of a 'command driven' CAD program? Setting
up AutoCAD and IntelliCAD and adjusting the
preferences. Creating an 'intelligent' desktop
shortcut to start the program.
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CAD Interface
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A detailed look at the CAD interface, including the
contents of the title bar, the tools on the standard
and formatting toolbars, the importance of the
command area, the status line - SNAP, ORTHO, tracking
coordinate entry etc. Learning to float and dock
toolbars. Using the ZOOM command; the value of the
central mouse wheel in controlling your view of a
design. Introducing the concept of layers in CAD
drawings; we look at a survey drawing and an
architects plan for a laboratory. The status bar. The
importance of the text screen window using the
DISTANCE command as an example. Saving CAD files.
Different CAD file formats. The importance of
understanding the underlying sequence in all
IntelliCAD/AutoCAD commands. Creating CAD logos.
Placing some text using different methods. An
introduction to 3D visualization techniques.
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Viewing Drawings
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Controlling your view of a CAD drawing. The use of
ZOOM, PAN, HIDE, VPOINT, REGEN and REDRAW commands.
Capitalization of command options. How to get help
when using an unfamiliar command - context sensitive
help. Using the LIST command to measure the length of
a wall (in feet and inches). Picking commands from
toolbar icons - the ZOOM Extents sequence. Getting
help in IntelliCAD and AutoCAD. The importance
of recognizing the underlying sequence in all
AutoCAD/IntelliCAD commands. The value of a proper
printed manual. Using the REDRAW command. Moving
between Paper Space and Model Space using the
TILEMODE command. Switching spaces using tabs. The
importance of the UCSICON command. Embedding raster
images such as those taken with a digital camera in
CAD drawings. Building a list of shortcuts for
individual commands.
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Precise Geometry
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Experimenting with some of the more esoteric drawing
commands in AutoCAD and IntelliCAD. Compound lines
with the POLYLINE command, the SPLINE command, the
RAY command, the ELLIPSE command, the POLYGON
command, the POINT command. The ERASE command.
Setting up a 400mm GRID. Building a design for a
courtyard by snapping to grid points to demonstrated
that drawing with precision can be a simple process.
The COPY command - using the multiple option. Using
some simple editing commands - ERASE, TRIM, EXTEND.
Using CAD to create a very simple design - we will
take a design for a rose garden as a simple example.
The CIRCLE and OFFSET commands. Using the entity snap
functions - calling the Endpoint, Centre,
PERpendicular, Quadrant options from the command
line. The value of setting up and using a template
drawing. Using the DISTANCE command. The RECTANGLE
command. The ROTATE command. The DTEXT command with a
hand lettered font.
Creating a title block sheet drawing using Cartesian
coordinates. We emphasize the importance of working
to a defined drafting standard using AS1100 -
Australian Standard 1100 for technical drafting - as
an example. Setting LIMITS, using the SNAP and
GRID commands. Creating a block library and saving
drawings sheets to it.
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Using Blocks
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An understanding of the importance of blocks in the
CAD environment is essential. Here we show creating
and inserting a logo and schedule in a drawing. Using
block library symbols, inserting blocks into a
drawing sheet. Using object/entity snaps.
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Layers and Colours
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Using the LAYER command. Creating new layers,
assigning layer colours and linetypes. Accurate
geometry by length, angle, OFFSET, FILLET and TRIM.
Placing entities on layers, inserting a north
indicator, controlling colour BYLAYER and by colour
entity. Blocks, layers and colour.
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Manipulating Text
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Placing text in CAD drawings. Using various drawing
aids to align text. Using the STYLE command to create
new text styles. Style naming conventions and the use
of fonts. Applying the DTEXT, TEXT and MTEXT
commands. Controlling text justification, text
height, inserting text in title blocks, single line
text, paragraph text, using grid and snap.
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Building the model
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Creating an accurate model (the design) ready for the
subsequent insertion of title block drawing at an
appropriate scale. We create an accurate 2D model of
a table and a drawing of a rectangular house block
with a building and landscaping located on it.
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Dimensioning and drawing settings
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We apply some simple horizontal and vertical
dimensions to an accurately drawn 2D model,
explaining the use some of the various dimensioning
commands. Some discussion of dimension styles is
provided together with the role of the dimension
toolbar.
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Plotting
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The PLOT and PRINT commands are used to get your
drawings out to paper. We show how to inserting a
drawing sheet and scale it up around your design by a
known scale factor. The control of pen weights in the
plotted drawings is discussed and a system which
mimics using the Rotring system is proposed. We set
screen colours and match to pen thickness, adjusting
pens and line weights. The value of reviewing plots,
plot configuration parameter files and the value of
using paper space vs. model space is discussed.
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IntelliCAD
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Further comparisons between AutoCAD and IntelliCAD.
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