Transcript Engineering Design with CAD

Engineering Design with CAD
Fusion FIRST training
2011
© 2008 Autodesk
An Engineering Challenge
(some material excerpted from John V-Neun’s 2009 presentation)
• Functional Requirements
• Goals and objectives
• Constraints
• Physical (dimensions, weight)
• Time
• Money
• Tradeoffs
© 2008 Autodesk
The Engineering Process
1. Define the problem
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Make sure it’s the right problem!
2. Generate specifications
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Use the requirements and the constraints
3. Set priorities
4. Design concepts
• Brainstorming
© 2008 Autodesk
The Engineering Process
5. Prototype
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Goal is to learn
6. Choice
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Every choice results in some loss
7. Detailed Design
8. Build!
9. Document
© 2008 Autodesk
The Engineering Process for FIRST
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Design
Discuss concepts and Prototype
Analyze and Adjust your design
Prototype…
Detailed Design
Manufacture
The process is iterative.
© 2008 Autodesk
Week 1 - Let’s Just Build! 
But now…
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Robot is too heavy
It’s too big
The parts don’t fit in the allocated space
Too fragile
Not easily fixable
Doesn’t perform the task well
Rework; waste resources
Week 6 - I wish I had designed 
© 2008 Autodesk
The Engineering Process – Autodesk
Products
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Define the problem
Generate Specifications
Set priorities
Design concepts - SketchBook
Prototype – Inventor Fusion
Choice
Detailed Design – Inventor
Build!
Document – Inventor Publisher
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FRC Engineering awards and criteria
Award
Excellence in
Engineering Award
Criteria
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Elegant and Innovative machine feature that has real world
application.
Design, wiring, material, programming, unique machine attribute
Verbally describe the concept, design, manufacturing/assembly and
deployment
Works well in competition. Extraordinarily cerative, functional, practical
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Innovation in Control
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Creativity
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Innovative control system or application of control components to
provide unique machine functions.
Verbally identify and describe the feature
Demonstrated to judges or in field of play. Not just a cute idea - it
must work and be reliable in the stress of competition
Creative design
Creative use of a component
Creative playing strategy
Verbally describe the unique/creative feature.
Highly original in concept
Practical
Engineered, not discovered by accident
FRC Engineering awards and criteria
Award
Industrial Design
Criteria
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Celebrates form and function in an efficiently designed machine that
achieves the game challenge
Elegant and efficient (simple). Practical and contributes to the team's
success
Very robust - no/few failures during contest. Easy to service and
operate
Entire machine is worthy
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Quality
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Engineering Inspiration
award
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© 2008 Autodesk
Robustness in concept and fabrication
Workmanship - welds, joints, wiring, paint, pit area, tools, control
panel, cart. Good support facilities
No functional failures during competition
Performs well
Outstanding efforts in advancing respect and appreciation for
engineering and engineers, both within their school as well as in the
community
Recruit students to engineering (emphasis on this year's
achievements)
Community outreach efforts
Success of those efforts