cad lab intro to creo 2.pdf
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Getting familiarize with Creoparametric 2
Learning objectives:
Understand the advantage of using Creo.Understand the bidirectional associative property.Learn various important terms and definitions in CreoLearn file menu optionsImportance of model tree
Mouse buttonsDefault toolbarsAppearance gallery
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Introduction to Creo parametric 2
A powerful software used to create complex designswith great precision. Once you understand the feature-based, associative,
and parametric nature of Creo parametric, you can
appreciate its power as a solid modeler. To make the designing process simple and quick this
software package (CAD/CAE tool) has divided theprocess into different modules:
Sketching using the basic sketch entities. Converting the sketch into features and parts. Assembling different parts and analyzing them. Documenting the parts and the assembly in drawingviews.
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Feature-based nature Feature: the smallest building block. A solid model created in Creo is an integration
of number of such building blocks. Each feature can be edited individually to bring
in the desired change in the solid model. This property provides greater flexibility to the
parts created.
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Feature-based nature (Example)
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Feature- based nature (Example) In a non feature based software package in
order to change all the outer counter boreholes to drill holes keeping the central counter
bore hole, BCD same and to change thenumber of holes from six to eight; you need todelete the entire part and then create a newpart as per the new specifications.
Creo can do this by just modifying some valuesin some part.
An advantage: Yes or No
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Bidirectional Associative Property Ability to ensure that if any modifications are
made in a particular model in one mode(Sketch, Part, Assembly, Drawing, etc), then
those modifications are also reflected in thesame model in other modes.
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Bidirectional Associative Property(Example)
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Parametric nature The features of a part become interrelated if
they are drawn by taking the reference of eachother.
You can redefine the dimensions or theattributes of a feature anytime.
The changes will propagate automatically
throughout the model, they developrelationships among themselves. Parent child relationship (will be handled in
more detail in part modeling)
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System requirements Your task is to fill the blanks given below:
Operating system: ________ Monitors resolution: _______
Processor: _______ Memory (RAM): _______ Hard disk space: ________ Mouse: _______ Graphic card: ______
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Getting started
Start > All programs > PTCCreo > Creo Parametric 2.0
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Important definitions
Parameter: A numeric value or a word thatdefines a feature. For example all dimensions insketch are parameters, and can be modified atany time.
Relation: an equation that relates to entities.Weak dimensions and weak constraints: are
temporary dimensions and constraints and
appear in light blue color, and areautomatically applied to the sketch, and canalso be removed from the sketch without anyconfirmation from the user.
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Important definitions
Strong dimensions and strong constraints: appearin dark blue color, and are not removedautomatically. All dimensions added manually
to the sketch are strong dimensions.
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File menu options
Selecting working directory: a directory whereyou can save the work done.
Before starting the work, set the working
directory for better organization of files,otherwise the object file will be saved to thedefault directory. (Select working directory fly-out)
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Status bar
Filter dropdown list
Drawing area
Creo help
Commandsearch
In graphics toolbar
RibbonGroups
Quickaccesstoolbar
Tabs
File menu
Navigator
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Common folders and folder tree
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New
Data group of the Home tab in the Ribbon New tool from the Quick Access .
Various modes, by default its Part mode withdefault name in the Name edit box. Note that the name must not contain any
special character.
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Open
Data group of the Home tab in the Ribbon New tool from the Quick Access .
Tools File name Type Preview
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Save
Save a copy Save a backup to create a backup copy of an
object file in the memory.
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Manage file and Model tree
File > Manage file File > Manage file > Rename
Model tree
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Functions of the mouse
To select
S h i f t +
Select chain orsurfaces
For shortcutmenus
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Functions of the mouse
Spin
S h i f t +
Pan
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In-Graphics toolbar
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Appearance gallery