PROFILE


    NAME: Jarvis
    AKA: Siege Tank
    YEAR: 2010
    TAGLINE:"No Heavy Lifting"

  • Ranking and Awards:

    Los Angeles Regional:

    22 out of 58
    Record:(5-3-2)

    FIRST Championship Event in Atlanta:

    51 out of 86
    Record: (3-7-0)
  • Drivetrain:

    Direct Drive
    Front Wheel Drive
    Andymark Kit C-Channel Frame
    2 12 inch pneumatic Drive wheels in front, 2 rear 8 inch omniwheels
    2 CIM motors per drive wheel
  • Mechanism:

    Pneumatic
    2 piston triggeringand reloading mechanism with surgical tubing elastic driven kicker.
  • **Removed**

    Pneumatic self lifting mechanism.
    Reason: insufficient lifting power at regulation pressure.
  • Software and Control

    Language: Ni LabView
    Driver interface: Logitech Game Controller with Flight stick kicker control
    Tank Drive Controls
  • Autonomous function:

    Kick a ball into the goal or kick multiple balls over the bump into the next closest section of the field.
    Reliability: 30% for goals, 75% for moving the ball into the next section

Game

  • Field:

    Goals in each corner of the field. 12 inch tall bumps separating the field into 3 equal areas. Lifting towers and platforms in the middle of each bump. scored balls returned to the center "neutral" section.

    Primary Scoring:

    Straight out soccer with 2 goals instead of one on each side. Balls are standard soccer balls worth 1 point each. Robots are allowed to control up to 3 balls at a time.

    Bonus Endgame:

    Any robot elevated more than 12 inches off the floor, or sitting on the platform receives 2 points. Another robot suspended on an elevated robot receives 3 points

    Autonomous Scoring:

    There was no bonus for autonomous scoring. However, since balls start the match in the opposing alliance's zone it was strategic to autonomously move those balls closer to your alliance's goals.

    Penalties:

    Seriously, there were so many ways to get penalties in this game it would take forever to write them all up.
  • Download the Game Animation here.

Coach's Notes

    This robot had a lot of potential, but was really poorly executed. It used Pneumatics for the second time in my years as coach. (And as far as I am concerned, this will be the LAST time we use pneumatics for anything) The lifter system only worked at twice the air pressure allowed and even then would get stuck on the way. In the middle of the Los Angeles Regional, we abandoned it to lighten the robot and make room for kicker upgrades. On that note, the kicker pistons destroyed themselves trying to work and had to be replaced by bigger and more air hungry pistons. This meant the kicker had one use, maybe 2 before the tanks had to be refilled leaving the kicker relatively unusable except in autonomous. Mostly this robot herded balls into the goals using a padded bar in its back axel. So it backed into the goal to score.

    The Design of the front wheel drive drivetrain allowed a 2 wheel drive to climb the 12 inch bumps, and used omniwheels as fancy casters. Manuverability of this robot was that of an overweight, sleepy pig. It was a testament to the skill of the driver that this robot could do anything, let alone drive backward pushing balls.

    This robot started with the name siege tank, for the starcraft element which it resembled when deploying the failed lifter piston. After the piston was removed, it lost all resemblence to a tank other than it was built as strong as a tank. As a demo robot after competition season, it was used in a skit at Raytheon, a team 702 sponsor, in the part of Jarvis, Iron Man's main computer. The name stuck.

    This was my first trip to the FIRST Championships. It was a great experience for the team even if we did not really place very well in the tournament. Although it has its shortcomings, With its green underglow, purring air compressor, and lots of neon orange tubes, Jarvis is a nice looking robot and excellent for demonstrations.