2012:Shooter and Collector: Difference between revisions

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*[http://www.penfieldrobotics.com/wiki/images/0/0a/TrajectoryMath.doc Math behind the above spreadsheet]  
*[http://www.penfieldrobotics.com/wiki/images/0/0a/TrajectoryMath.doc Math behind the above spreadsheet]  
*[http://www.grc.nasa.gov/WWW/k-12/airplane/foil3.html Foil Sim III] - Air flow simulator; useful for approximating drag effects on a ball
*[http://www.grc.nasa.gov/WWW/k-12/airplane/foil3.html Foil Sim III] - Air flow simulator; useful for approximating drag effects on a ball
*[http://penfieldrobotics.com/wiki/index.php?title=File:2012_MotorInfoRevised.pdf Motor Specs from FIRST]


= Shooter and Collector Master Task List  =
= Shooter and Collector Master Task List  =

Revision as of 04:56, 19 January 2012

Shooter Design

  • Turret-mounted
    • Approx. 280 degrees of rotation minimum need final range
    • 1-degree precision
    • Mechanical hardstops
    • Absolute angular position sensor
    • Need motor and power controller
  • 2-Wheel shooter
    • Must be able to impart backspin
    • Fixed angle of shot -- approximately 60-70 degrees above floor
    • Each wheel independently controlled (to control backspin)
    • Powered by Fisher-Price motor on speed controllers
    • Sensor for RPM on each
      • Provide sufficient resolution for rapid speed control update
      • Identify sensor characteristics
  • Camera mounted on turret
    • Must have direct light source inline with lens
    • Do we need pan? tilt?

Beater Bar Design

  • Fixed position within frame, as close to perimeter as possible
  • 1 speed forward, 1 speed reverse (full speed? can use relay?)
  • Pushes balls in and on to first conveyor section
  • Identify motor

Wings/V-collector Design

  • V-shaped collector outside of robot
  • Articulated up/in and down/out -- 2-position motion
  • Just a plain bars, no actual motion on the bars themselves
  • Motion must be able to pull unloaded bridge down from horizontal
  • Determine motor or pneumatics
    • This also drives sensors (not needed for pneumatics)
    • If motor, decide speed controller or not


Ball Movement/Storage System Design

  • Two designs - not decided yet. DECIDE ME
    • See drawings on shop wall


Resources

Shooter and Collector Master Task List

Shooter and Collector's Engineering Notebook

Week 1

Week 2

Week 3

Week 4

Week 5

Week 6

Engineering Notebook Templates Available at:Engineering_Notebook_Template

Please Label All Notebook Pages 2012:Shooter and Collector XX.XX to avoid confusion.