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Lecture Design & Manufacturing

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Mark Cote © 2006 How to Get Through 2.007 (and learn a bit…and maybe win if you really want to…)
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  • Mark Cote 2006

    How to Get Through 2.007

    (and learn a bitand maybe win if you really want to)

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    First off

    Do not be daunted by the tasks ahead! This class is about learning the design process, how to

    manufacture, how to communicate, how to design, etc. We wont leave you in the dark!

    Dont worry if youve never done anything like this before! I was totally new to the design process and had barely

    done any machining when I started 2.007.

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    How to Get Started(Hint: the next ~14 slides model your first Milestone)

    First, figure out what you want to do! (your class objective)

    Want to win? Want to make a cool robot? Want to pass the class?

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    Strategy Time

    Next, come up with some strategies based upon what you want to do

    (think FR-DP) What you want to do How youre going to do it

    Be detailed a strategy should summarize what you plan on doing in the competition (make a 45 second timeline)

    Dont think about concepts yet! The design process starts with good strategies

    Strategies YES, plural brainstorming is NOT synonymous with being close-minded (make 3-5)

    Perspectives Consulting Group

    2006

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    Quick Note

    Even though your first idea might end up being your final machine, Brainstorm!!! Think creatively! Sometimes the craziest ideas inspire the

    most innovative, clever solutions Parts of a few different strategies (or

    concepts later on) will form your final one

    More on this at the end (pics/videos!)

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    Developing Strategies(think FRDPARRC)

    Scoring Gathering balls Transporting them Scoring them

    Offense Mess with the other

    robot

    Defense Protect your

    robot/balls/scoring area

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    Functional Requirements (What?)

    Example: I want to score four

    engineering balls and the grad ball in the A-slot and will block my opponent after.

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    Design Parameters (How?)

    I screwed up my first milestone soHow for this is How would I do this?

    Good Example: I will pick up the balls with a grabber,transport them in a corral, line up my machine with the A-slot, and drop them in.

    Bad Example: I will use a four-bar linkage lever-winch system to pick up 5 engineering balls in a line, deposit them in a U-shaped corral atop my robots base, and using a leadscrew pushing mechanism will deposit them in the A-slot. TOO SPECIFIC FOR NOW Think broadly!

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    Sketches and Analysis

    Show your idea on paper

    Include a timeline,rough power budget (can your motors/battery do this?)

    This will get more detailed later in the course

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    Analysis (words and numbers)

    Your analysis will end up fairly detailed and should include: Sketches Explanations Equations Power Budget Bench Level Experiments Proof of concept Theoretical, analytical, and real world proof

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    Example Analysis

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    References

    Never forget these! Give credit to the people who deserve

    it! Saw it on the website In a book On a piece of machinery Discussion with a UA ALWAYS reference your lab notebook

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    Risks and Countermeasures

    Heres your chance to over-analyze! These are physics problems, difficult

    engineering steps, concept issues, vulnerabilities in strategies, etc.

    Come up with specific problems and give good solutions Not: Design it well so it works

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    Example Risks and CMs-car is unstable around ramps; hard to maneuver

    -make a suspension system (complex!)-smaller wheelbase-change drive wheel layout-practice driving

    -car is too slow -decrease gear ratio-decrease car body friction with the carpet

    -car wheels spin out -add sandpaper to the wheels

    -cant finish design on time/problems hold up production

    -make a bulldozer car to just push balls around and hopefully score

    -cant score in A-slot because of driving difficulty

    -slow down gear ratio-practice-design a mechanical stop so the car lines up at A-slot

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    Thats a FRDPARRC!

    When you do these, make them detailed and extensive Should be able to explain your

    organized ideas to anyone even someone who has a vague idea of the competition

    Should include any and all relevant analysis to prove that you can do what you propose

    E=FRDPARRC

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    The 2 Forms of 2.007

    Logistics and Grades

    The Competition

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    Logistics and Grades(How to Get an A)

    Go to lab! WRITE EVERYTHING YOU THINK OF IN YOUR LAB

    NOTEBOOK Organize your Milestones

    Think of Milestones as a summary of all of your thinking Your TA should be able to figure out basically all of your thoughts just by looking at

    these few pages

    Be creative! Creativity spawns innovation

    Model your machine (2D and 3D) This makes it so much easier to fabricate

    Talk with your TA Theyre the ones grading so show them you care about the design process and your

    learning

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    The Competition(How to Do Well and Maybe Even Win!)

    Make a Robust Design Great versatility and performance against any type of

    opponent

    Design with the table in mind Do not assume anything

    Check if you have a question Do a BLE if you arent sure about something

    Make a schedule (early like now) and stick to it

    Build in a 3-4 week buffer Think about product engineering lots to do after

    theres a prototype

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    The Competition(2 of 2)

    Finish early and practice a ton Make your robot intuitive

    Driving should make sense and be fairly easy to learn

    Fix things that could break before they break (especially in the last week)

    Dont waste time in lab especially early on Do all the out of lab stuff that you can out of lab

    Design, strategize, drill holes (you have a nice drill) Lab is for fabrication, testing, modification, and discussion

    with TAs and UAs

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    The Competition Secrets(If you want to win)

    Build a machine the practically drives itself Be ambitious (see pics/videos) Be realistic

    You have to build it!!! Find your inner engineers nirvana

    Learn to focus winning the competition is 30% robot (you need this though), 20% driving, and 50% mental

    Get Lucky (just a bit)

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    Be Ambitious

    You can do anything!

    2005 Competition Tic-Tech-Toe

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    Tic-Tech-Toe

    3rd level

    2 blocks 80 points

    April 24th, 2005

    In 45 seconds

    4th level

    3 blocks 320 points

    May 13th, 2005

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    Bloom Your DreamsInternational Design Competition 2005 Nagoya, Japan

    In 2 weeks, with a team of four that didnt speak the same language

    2 robots (and an umbrella)

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    (Cut to Video)

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    3 Quick Things to Remember

    1. Keep it simple! robust designs are versatile! you have to build what you dream up!

    2. Write everything down in your design notebook

    And I mean everything! It doesnt need to be ridiculously organized but get your ideas on paper!

    Taking pictures is a good idea document the process or designing/building your robot

    3. Talk with people! Other students, UAs, TAs, profs, the lab guys,

    previous students you can learn a ton from people who have been through .007

  • Mark Cote 2006

    2.007 Design and Manufacturing2.007 Design and Manufacturing

    Questions?

    Good Luck! Make some awesome machines!

    Im in lab Tuesday and Thursday and am available by request at

    [email protected].


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