MEE104L Lesson01 Intro 3dCAD Basics&Interface
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Transcript of MEE104L Lesson01 Intro 3dCAD Basics&Interface
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MEE 104L Lesson 1
Course Introduction,3D CAD Basics & Inventor Interface
Tuesday, January 17, 2012
Jamie ObermeyerUniversity of Dayton
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MEE 104L Introduction
1. Personal Introduction
2. Review Syllabus
3. 3D CAD Basics
4. Autodesk Inventor Interface Review
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Personal IntroductionName: Jamie Obermeyer
Hometown: Batesville, Indiana
Now Live In: Oakwood, Ohio
Education: Bachelor of Mechanical Engineering
Kettering University, Flint, MI
Master of Science Mgmt. of Technology
Rensselaer Polytechnic Inst., Troy, NY
Design Experience: Design/Analysis Manager, 2000-2009
Delphi, Vandalia, OH
IT Manager Engrg/Design Apps, 2010-Present
BWI Group, Kettering, OH
CAD Instructor, 2011-Present
Univ. of Dayton, Dayton, OH
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Review Syllabus
1. See Isidore site
2. Syllabus subject to change as needed
3. Open to suggestions for content
improvement
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Shortfall of 2D CAD
?
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3D CAD Master Model Concept
3D Master Model
2D Drawing
3D Assembly ModelFinite Element Model
.stl File for Rapid Proto
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3D CAD Master Model Creation Steps
1. Start with a mental
image of your 3D part.
2. Break it down into
major cross-sections
3. Capture the basic shape of
the first cross-section
4. Apply geometric
constraints to the sketch tofreeze the shape
5. Add Smart Dimensions to every
characteristic needing a dimensionuntil the sketch is Fully Contstrained.
Note:
At this point, dont
worry about the EXACT
dimension. The
relationship between
the features is more
important.
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3D CAD Master Model Creation Steps
Note:
When you consistently
build your Master
Models with this
process, subsequent
changes will be much
easier to accomplish.10. Your first iteration Master
Model is complete!
6. Now add specific
dimensions if known
7. Complete sketch and
extrude to thickness
8. Repeat the process for the
other main cross-section
9. Now add or subtract
material as needed usingfillets, chamfers, holes, etc.
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Autodesk Inventor Filetypes
3D CAD parts: .ipt (Inventor Part)
2D Drawings: .idw (Inventor Drawing)
3D Assemblies: .iam (Inventor Assemblies
For reference AutoCAD files: .dwg and .dxf
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Autodesk Inventor Part (.ipt)
.ipt files are for asingle, 3D CAD part
3D Master Data can
be used as basis fordrawings, and with
other parts to make
assemblies
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Inventor Application Window Elements
Autodesk Start Button
File functions Options/settings
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Inventor Application Window Elements
Quick-Access Toolbar
Quick access to often-
used tools
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Inventor Application Window Elements
Name of currently-
active file
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Inventor Application Window Elements
Help Menu Area:
Search help
Help Options, see
pull-down
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Inventor Application Window Elements
Ribbon Tabs:
Group major
functions/tasks
together
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Inventor Application Window Elements
Model Ribbon:
The functions needed
to model a 3D part in a
workflow.
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Inventor Application Window Elements
Inspect Ribbon: Tools to measure or
analyze your model
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Inventor Application Window Elements
Tools Ribbon:
Studio Rendering Measurements
Options, Settings
Search
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Inventor Application Window Elements
Manage Ribbon:
Advanced Features
May Be Covered Later
This Term
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Inventor Application Window Elements
View Ribbon: Item visibility and
appearance options
Window layout options
Turn User Interface items
on or off Good to know if
something disappears
Navigation Wheel options
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Inventor Application Window Elements
Environments Ribbon:
Stress Analysis Inventor Studio (animations
and high-end rendering
Eco Matls Advisor
Sheet Metal conversion
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Inventor Application Window Elements
Get Started Ribbon: Excellent source of tips and
tutorials!
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Inventor Application Window Elements
Model Browser: Lists items in build order
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Inventor Application Window Elements
View Cube: Use for incremental
rotations or free rotation
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Inventor Application Window Elements
Navigation Bar: Use to choose among
several different navigation
tools, such as Zoom, Orbit,
Navigation Wheel.
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Inventor Application Window Elements
Status Bar: Tells status of modeling
step, and/or providesinstructions for next step