Innovative Prototyping and Robot Design Team 40 by oft14212

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									Innovative Prototyping and Robot Design
                Team 40
Speaker

 Dan Larochelle
     CTO - intelitek
     FRC and VRC team #40 - Trinity HS
     15 years FRC experience
Overview

 Prototyping Platforms
 Mini FRC video
 Prototyping tips
 Bench testing motors and electronics
 Purchasing sources
 Team 40 Frame design
Prototyping Platforms

 Vex
    IFI – Vex Robotic Competition (VRC)
    Savage Soccer
    easyC and REC robotic training tools
 Lego NXT
    FLL
    FTC – Tetrix
 Cardboard and 2x4s
 Popsicle sticks
Team 40 Pre-season Training

 REC
    ACS I and II – Trinity HS
    REC Vex robotic curriculum to teach robotic
     fundamentals and concepts
 Robot Competitions
    Savage Soccer
    Vex Robotic Competition
 Practice Iteration
    Build confidence
    Learn how to iterate design ideas
What is Mini FRC?

 2007               2008
Mini FRC

Goals
 Enhance current brainstorming techniques with the
  Vex platform.
 Rapid prototype 6 mini robots for to prove out the
  validity of our ideas from our initial brainstorming
  session in week 1.
 Limit the build to 2-3 days.
 Compete the various designs against each other
  and see what happens.
2006 Aim High Mini FRC Video

 This video can be downloaded from the intelitek
  website at

      www.intelitekdownloads.com/MiniFRC
What did we learn about the game?

 Winning autonomous was a big advantage, it put the
  losing team in catch up mode.
 Good shooting robots are hard to beat.
 Shooters missed a lot more than they got in.
 Ramp points weighed heavy in low scoring matches.
 The field was littered with balls after the first few
  periods, picking up balls from the floor was key.
 A good defensive robot can nullify a good offensive
  robot, especially while a shooter is shooting!
 Mobility was important, the field was crowded and
  there were lots of places the robot could be pinned
How did it affect our team?

 First project in 15 years that involved every single
  member of an FRC team.
 Leveled the playing field enabling younger
  students to learn and share their ideas with their
  more experienced teammates.
 Higher level of thinking about the game. Game
  strategies could be played out in real time.
 Students were challenged to show their ideas
 It made believers out of the skeptics that felt that
  MiniFRC project was a waste of time.
 Team bonded together and had a lot of fun.
How did it affect our FRC robot?

                    Focused our design on being
                     effective in autonomous
                        A rapid fire shooter
                        Mobility traded off for
                         strength – Mechanum
                         wheels
                    Use the camera to aim shooter
                     to avoid wasting balls
                    Dual conveyors to harvest balls
                     from both sides
                    Educated decisions were made
                     early in the design process.
                     Reduced guessing!
What did the students learn?

 Working in smaller groups allowed more ideas to be
  developed and tested.
 Students not intimidated by the hardware, permitting
  greater experimentation and innovation.
 The competitive element of the competition drove
  them to keep making their robots better.
 The engineering design process was dramatically
  reinforced through competition, especially the
  concept of design iterations
 Making minirobots is FUN!
 What did the mentors learn?

 Mentors became facilitators, empowering the students.
 The students had to understand the Rules of the
  game. This led to a better informed team.
 Leveled the playing field between the boys and the
  girls.
 Robustness of the Vex platform allowed for a direct
  correlation of concepts and ideas to our FRC robot.
 Team spent time testing ideas and strategies in week
  1 and 2 rather than week 6 when it is typically too late!
 Increased comfort level with trying out new ideas.
 Training prior to kickoff with Vex, easyC and REC
  made the project run smoothly.
Was it worth it?

Absolutely!
 Increased comfort level with final design
 Great team building exercise.
 Increased student knowledge and awareness
 Surprise! – Regional competition confirmed most
  of our Mini FRC findings
Would we do it again?

Yes! - We have
  done this process the
  past 3 years.
 Set firm dates for
  mini completion –
  know when to end
  the mini robots and
  start the big one.
 Integrate more
  sensors and
  programming into the
  mini designs
Prototyping Tips

 Assemble the Kit Bot
 Keep prototypes simple
 Use materials you have on
  hand to test your ideas
    Plywood and Cardboard
     work great!
 Do not try to reinvent the
  wheel, literally!
    Use premade gearboxes
     and wheels to meet the
     needs of your design
     (www.AndyMark.biz)
    80/20 Aluminum
     extrusion
Testing your Motors and Electronics

 It is very important to
  test all of your control
  system components and
  motors early.
 This can be done in
  parallel with the main
  robot design.
 Allow electrical people
  and programmers
  access to the hardware
  early instead of 5
  minutes before it has to
  ship out the door!
Purchasing Sources

 Grainger
    www.grainger.com
 MSC
    www.mscdirect.com
 McMaster Carr
    www.mcmaster.com
 IFI
    www.ifirobotics.com
 AndyMark
    www.AndyMark.biz
 Home Depot/Lowes
Team 40 Frame Design

 1”x1” 1/8” square tubing
 1”x1” angle brackets
  used for mounting frame
  members together
 10-32 hole pattern easy
  to drill and tap into
  frame members
 ½” holes can be drilled
  into frame members to
  reduce weight after
  design is finalized
Team 40 Frame Design

 The angle brackets
  allow us to quickly
  assemble and test the
  frame
 This bracket system
  allows for quick
  modifications to the
  frame.
 The brackets also make
  perfect fixtures for
  welding.
Thank You!




   Good Luck
    this year!

								
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