• Picture 1
  • Picture 2
  • Picture 3
  • Picture 4
  • Picture 5
  • Picture 6
  • Picture 7
  • Picture 8
  • Picture 9
  • Picture 10
  • Picture 11
20
Jan 10

Build Season Log – Design Meeting Jan. 20

This is the build season log for Lynbrook Robotics.

Software & electronics

  • have better layout for the wires
  • start with the programming soon
  • Mr. Yang (Annie’s dad) will help with this
  • Use proximity sensor to detect the balls
  • Shooting the ball accurately at long range may be hard
    • passing the balls to the near field may be good enough
  • We might use a vision camera for a cockpit view
    • can be used after autonomous mode to provide aim assist

Sensor inventory

  • Encoder on gearbox
  • Hall-effect sensor for speed
  • Camera
  • Ultrasonic
  • Infa-red
  • Gyro

Robot arm design

  • the arm raises sideways, and reaches up to 90 inches
    • if the arm isn’t perpendicular, then the total length of the arm may extend beyond 90 inches to achieve that height
      • may not pass safety inspection
  • the hook accounts for some of the height of the arm
  • robot must be right next to the tower to grab on
    • alternatively, the arm may swing beyond vertical
  • folding arm vs. telescopic arm
  • have a cable on the opposite side of the arm that also pulls the robot up
    • prevents the torque from having too much stress on the arm base
    • expose the smooth side of the robot to rub against the platform if necessary
  • have a corkscrew that grabs onto the tower

Movable ball-controlling roller?

  • acts as a tensioner
    • prevents the roller from applying too much force on the ball, and prevent driving over it
  • wooden mockup shows that there is very little room for the roller, so an adjustable roller will be difficult to implement
    • the kicker shouldn’t hit the roller
    • a spacer that prevents the kicker from following its motion through
    • a kicker that can vary the amount of force that it provides

Kicker

  • doesn’t necessarily have to hit the ball directly
    • spring loaded contraption hits a hammer that transfer the force to the ball
    • may be more flexible

Motor inventory

  • CIM – 5
  • Fischer-Price – 2
  • Window Motor – 2L, 2R
  • RS555 (30W) – 1
  • RS??? – 1

Motor application (subject to change)

  • Drive train – 2 CIM
  • Winch – 1 CIM
  • Righting & arm – 1 CIM
  • Front roller – 1 RS
  • Kicker – probably 1 CIM
  • Kicker charger – probably 1 RS
  • Climber – 1 RS or 1 Fischer-Price

This entry was posted on Wednesday, January 20th, 2010 at 6:43 pm and is filed under Projects. You can follow any comments to this entry through the RSS 2.0 feed. You can leave a comment, or trackback from your own site.

Leave a comment