LINGARAJ B SHAMANUR

GOVT POLYTECHNIC KARWAR MCAD LAB (15ME35P)

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


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.


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


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


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.


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.


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


MODEL WITH SIMPLE HOLE


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.


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


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.


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


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


STEP 3


STEP 4

STEP 5


STEP 6

STEP 7


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


Sequence 2:

All the other features are created by protrusion command and cutout commands by selecting proper planes


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.


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


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.


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.

LINGARAJ B SHAMANUR

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