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STUDY MATERIAL
FOR MECHANICAL COMPUTER AIDED DRAFTING LAB
USING SOLID EDGE
Prepared By
LINGARAJ B SHAMANUR
SELECTION GRADE LECTURER
DEPARTMENT OF MECHANICAL ENGINEERING
GOVT POLYTECHNIC KARWAR
GOVT POLYTECHNIC KARWAR MCAD LAB (15ME35P)
INTRODUCTION TO SOLID EDGE
SOLID EDGE is a powerful software which is used to create complex design
with great ease.We can use the powerful tools of solid Edge to capture the
design intent of any complex model by incorporating intelligence into the
design.
STARTING SCREEN OF SOLID EDGE
When we start solid edge ,the screen looks like above fig.
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SOLID EDGE ENVIRONMENTS
SOLID EDGE SOFTWARE PACKAGE PROVIDES YOU DIFFERENT
MODULES OR ENVIRONMENTS.
SOLID EDGE ENVIRONMENTS (MODULES)
SOLID PART ENVIRONMENT:
The Solid Edge part modeling environment allows you to construct 3D solid
models with true features. The part modeling process starts with a base
feature, such as a block or cylinder, which you build upon with part features to
create a part model. Part features include protrusions and cutouts (extruded,
revolved, swept, and lofted), holes, ribs, thin-walled solids, rounds, draft
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angles, and chamfers. You can also construct rectangular and circular feature
patterns and mirror copies. When you design parts in Solid Edge, all geometry
is created in the context of constructing features. The software keeps track of
construction elements for you, making them available when you edit the
feature but hiding them from view while you work on other parts of the
design. You can also add your own construction geometry, such as extruded,
lofted, and swept surfaces, intersection curves, projected curves, and
intersection points.
SHEET METAL ENVIRONMENT
Solid Edge has a separate sheet metal part modeling environment to better
accommodate the unique requirements of sheet metal parts.
As in the Part environment, the sheet metal modeling process starts with a
base feature which you build upon with additional features. The base feature
can be a flat section or include one or more bends. The added features can be
flat sections, simple or complex flanges, and edge breaks such as chamfers and
rounds. Feature commands available in the Part environment are also included,
such as holes, cutouts, and feature patterning and mirroring commands.
When completed, the sheet metal part can be quickly flattened, using industry
standard formulas or custom programs you define
SHEET METAL ENVIRONMENT
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ASSEMBLY ENVIRONMENT
Solid Edge can manage large, complex assemblies containing many parts and
subassemblies. The Assembly environment contains commands for fitting
parts together with natural assembly techniques such as mate and align. Solid
Edge accommodates the fact that most parts are designed in the context of an
assembly. To support this workflow, Solid Edge provides tight integration
with the part modeling environment, visualization tools, data management
tools, and part-to-part relationship management tools. Solid Edge makes it
easy to manage assembly data from the earliest phases of project planning,
through revision cycles, manufacturing, project maintenance, and archival.
WELDMENT ENVIRONMENT:
This environment helps you to insert components from part or Assembly
environments and apply weld beads to the parts or assembly.This environment
is associative with part and Assembly environments.
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DRAFT ENVIRONMENT
Solid Edge provides a separate drafting environment for producing
engineering drawings directly from 3-D part or assembly models. Solid Edge
drawings are associated with the 3-D model, so that the drawing reflects
changes in the model as the design progresses. These model-to-drawing links
minimize drawing maintenance in response to engineering changes, so that
you can easily keep drawings up-to-date with the part or assembly model.
Hidden line representations are properties of the drawing viewthey do not
affect your view of the solid model in the Part or Assembly environments.
You can create drawings that display various views, sections, details,
dimensions, notes, and annotations. You can also add feature control frames,
datum frames, weld symbols, and surface texture symbols to your drawings.
Ensuring that the dimensions and annotations on your drawings conform to
your company's standards or international standards is easy as in Microsoft
Office products, you can capture these settings in styles and templates.
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DRAFT ENVIRONMENT
FEATURES OF SOLID EDGE:
SOLID EDGE software has the following features
• FEATURE BASED MODELLING
• BIDIRECTIONAL ASSOCIATIVITY
• PARAMETRIC NATURE
FEATURE BASED MODELLING
A feature is defined as the smallest building block of a model.Any solid model
created in Solid Edge is an integration of a number of features.Each feature
can be edited individually to make any change in the solid model.As a result
,the feature based property provides greater flexibility to the created parts.
The advantage of dividing a model into number of features is that it becomes
easier to modify the model by modifying the features individually.
For example you can see model with simple holes near the corners of the plate
in first model and if you decide that counter bore holes are needed ,you can
edit the hole feature and counterbore holes can be obtained without changing
or deleting the entire model
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MODEL WITH SIMPLE HOLE
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MODEL WITH COUNTER BORE HOLES
Bidirectional Associativity:
The bidirectional Associativity of the software is defined as its ability to ensure that
any modification made in a particular model in one environment is also reflected in
other environments.For example if you make any changes in a model in part
environment, then the changes will reflect in the same model in Assembly
Environment and vice-versa.
PARAMETRIC NATURE
PARAMETRIC NATURE means that the sketch is driven by dimensions
OR the geometry of the model is driven by its dimensions.For example,to
draw a model of rectangular plate of 100 X80 units,you can draw a
rectangle of any dimension and then modify its dimensions to the
required dimensions of the plate.You will notice that dimensions drive the
geometry of the sketch.
Therefore ,using Parametric Property,any modification in the design of a
product can be accomplished at any stage of the product
development.This makes the design flexible.
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GETTING STARTED WITH SOLID EDGE
To start Solid Edge on your computer,choose star>-all programs>solid
Edge>solid Edge as shown below.
Using Toolbars, Ribbon Bars and Dialog Boxes
Solid Edge ribbon bars and dialog boxes work just like those in Windows.
Solid Edge toolbars give you quick access to commands. You can place a
toolbar anywhere within the application window, either docked at the top,
bottom, right, or left, or floating anywhere in your work space.
The Main toolbar contains commands for manipulating documents, printing
documents, and managing views. Each environment's Main toolbar also
contains tools and utilities designed to simplify the workflow in that
environment.
Main Tool bar
Ribbon Bars
A ribbon bar, which is a dynamic, context-sensitive toolbar, appears when you
click a specific command or when you select an element. In most cases, the
same ribbon bar is used for editing as for creation, making the editing process
easy and intuitive. You can drag a ribbon bar to the top or the bottom, but not
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to the sides, of the window. The following illustrations show the same ribbon
bar docked and then floating.
Ribbon bar
The EdgeBar Tool
The EdgeBar tool in Solid Edge is an important productivity tool that is
available in all environments. The EdgeBar tool helps you organize and find
information in your Solid Edge parts, assemblies, and drawings. When you
first install Solid Edge, the EdgeBar tool is located on the left side of the Solid
Edge work space.
If you close the EdgeBar tool and want to redisplay it, select this command
icon on the Tools menu: .
The tabs on the EdgeBar tool change depending on the environment in which
you are currently working. For example, in the Draft environment, the
EdgeBar tool is used to control layers and blocks. In the Part and Sheet Metal
environments, the Feature PathFinder tab helps you work with the features that
make up your parts. In the Assembly environment, the Assembly PathFinder
tab helps you work with the parts and subassemblies that make up your
assembly.
REFERENCE PLANES AND THEIR CREATION:
A reference plane is a flat surface that is typically used for drawing 2-D
profiles in 3-D space.
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Although the size of a reference plane is theoretically infinite, it is displayed at
a fixed size to make it easier to select and visualize.
There are three types of reference planes:
• Base reference planes
• Local reference planes
• Global reference planes
When you create local and global reference planes, you specify the
orientation and position of the new reference plane relative to an existing
reference plane or a planar face on a part. For example, you can specify
that the new reference plane is coincident to (A) or parallel to (B) a part
face.
Base Reference Planes
The base reference planes are the three orthogonal reference planes at the
origin of a new part or assembly document. They define the Top (xy), Right
(yz), and Front (xz) principal planes.
You can use the base reference planes to construct profile-based features. You
can also use them to position a part in an assembly or to define the x-axis for a
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new reference plane you define using a part face. You can display and hide the
base reference planes individually or as a group.
Local Reference Plane
You create a local reference plane when you construct a new profile-based
feature. Local Reference planes are created by user.User can offset existing
plane/surface,create it at an angle or can create by offsetting another reference
plane. Local reference planes are used only for the feature being constructed
INTRODUCTION TO PART CREATION IN SOLID EDGE
To create the Parts in Solid Edge, choose Part mode and draw sketch of
part in the required plane and then give thickness to the part in a
direction perpendicular to sketching plane .These steps are shown in the
following sequence of figures.
Step 1:
STEP 2
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STEP 3
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STEP 4
STEP 5
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STEP 6
STEP 7
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STEP 8
2D Drawing
In Solid Edge, you can draw 2D elements to create profiles and sketches in the
Part environment, and layouts in the Assembly environment. In the Draft
environment, you can use 2D drawing tools to complete a variety of tasks such
as drawing sketches from scratch on the 2D model sheet or in 2D views,
creating background sheet graphics, and defining cutting planes for section
views. The drawing commands, relationships, and dimensions work similarly
in all environments.
Drawing Area Setup in 2D Model Space
In a draft document, you can draw, design, annotate, and dimension on the 2D
Model sheet. The 2D Model sheet is a special sheet used exclusively for
working in 2D model space. It enables you to draw on the sheet and to
annotate at a scale appropriate for the overall size of the part you are
designing, yet it prints your drawing with annotations appropriately scaled to
the output sheet size you specify.
• To display the 2D Model sheet, select the View→2D Model Sheet
command and then click the document sheet tab labeled 2D Model
Sheet.
• To set the size and scale of your work area on the 2D Model sheet,
select the File→Drawing Area Setup command. Work area setup
calculations are made automatically based on sheet size and the
dimensions of your intended design.
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Drawing Commands and Tools
You can draw any type of 2D geometric element in Solid Edge—lines, arcs,
circles, and other primitives.
Solid Edge also allows you to do the following:
• Move, rotate, scale, and mirror elements
• Trim and extend elements
• Add chamfers and fillets
• Create precision graphics from a freehand sketch
• Change the color of elements
Tools that work with the drawing commands—IntelliSketch, Intent Zones, and
Grid—allow you to easily relate elements to each other, define your drawing
intentions as you sketch, and provide precise coordinate input relative to any
key position in the drawing.Solid Edge drawing commands allow you to provide input by clicking with the mouse, or by typing values in ribbon bar boxes. No strict input order is required
It is often productive to use a combination of graphic and ribbon bar input. For
example, you can type a line length in the ribbon bar box to lock the length
value, press the Enter or Tab key to lock the value, then set the line's
orientation angle graphically. Or you can use the drawing command dynamics
to get a graphic idea of the size and orientation you want, then type values in
the ribbon bar boxes to provide more specific input.
Drawing Sketches of Parts
Drawing sketches allows you to establish the basic functional requirements of
a part before you construct any features. You can draw a sketch on any
reference plane using the Sketch command in the Part, and Sheet Metal
environments. Then you can use these sketches to create profile-base features.
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Getting Started with Part Modeling
To create the part model in solid Edge perform the following sequence of operations.
Sequence 1.
Create the base feature and the base feature is an extruded feature and profile of this feature will be created on the base reference planes(xy,yz or zx).
Profile Feature
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Sequence 2:
All the other features are created by protrusion command and cutout commands by selecting proper planes
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Genarating the drawing views
After solid model is created OR an Assembly model is
created,you can generate Two dimensional Views(2D).Solid
Edge has a separate Environment called Draft
Environment,which is used to generate drawing views.This
Environment contains The tools to generate ,Edit ,Modify
drawing views.
To invoke draft Environment,invoke New dialogue box when
solid Edge is running.
TYPES OF VIEW GENERATED IN SOLID EDGE:
In Solid Edge Base Views,Principal Views,Auxiliary views,Section views
,Detail Views and Broken out Views are generated.
Base Views:The Base View is the First view and is generated using a
parent model or an assembly.
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Principal Views:
It is an orthographic view generated using any other view present in drawing
sheet.It is most common view generated after base view.
Front View Side View
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SECTION VIEW:
After you create part view, you can use it to create a section view. A section
view displays a cross section of the 3D part or assembly model. Sectioned
areas are automatically filled.
You can create section views with the section view command and the Broken
out section command.
Before you can create a section view with the Section View command, you
must create a cutting plane on the part view you want to use as the basis for
the section view using the cutting plane command.
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Working with Assemblies in Solid Edge You can build an assembly using existing parts and subassemblies, or you can model new parts within the context of the assembly. You can even use parts that were not modeled with Solid Edge. You can also create layouts in the Assembly environment
Top-Down and Bottom-Up Design in Solid Edge Top-Down Assembly Modeling
Top-down assembly modeling is an assembly-centric modeling method where
the assembly design is started at the highest level possible, and individual
parts and subassemblies are defined within the context of the overall assembly.
With this approach, an assembly layouts is typically created first, and this
assembly layout is used to define individual part geometry and position.
This approach is often used at companies where the product being designed is
large enough that it requires many people to complete the design. A senior-
level designer might create the initial assembly layout, then divide the
assembly layout into logical subassemblies and parts for the remainder of the
organization to complete.
Bottom-Up Assembly Modeling
Bottom-up assembly modeling is a part-centric modeling method where the
assembly design is started with a principal structural or functional element,
and individual parts are designed in relative isolation from the overall
assembly. Component parts and subassemblies are defined as the process
moves up towards the top-level assembly. With this approach, as the design of
a key component is completed, its geometry may or may not be used to aid the
design of related mating components.
This approach is often used at companies where the product being designed is
small enough that one or only a few people are needed to complete the design
Assembly Relationships
When placing a part or subassembly into an assembly, you must define how
the part will be positioned with respect to the other parts in the assembly by
applying assembly relationships. Available relationships include ground,
mate, planar align, axial align, parallel, connect, angle, cam, gear, and
tangent.
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