Design

Overview

  • Move around field
    • 27' × 54', usually carpet
  • Push/pull objects and robots
  • Climb up ramps or over obstructions
  • Speed and pushing force both important
    • In 2010, durability and power to get over the bump

Simplicity

  • Fewer things to fail
  • Easier and faster to build and repair
  • Lighter
  • More durable
  • More elegant
    • Durability

      • Simplest mechanisms often the most durable
      • Robot will likely go through much more stress than you expect
      • Support shafts on both sides
      • Use large sprockets to reduce load on chain
        • #25 (1/4" pitch) chain usually quite adequate

      Weight Distribution

      • Keep as much weight as low as possible
      • Put weight over the drive wheels
      • Battery is a large component of the total weight (14 lbs) and can move the center of gravity
      • 2010: just because the bumpers have to be up high doesn-t mean the main frame does!

      Miscellaneous

      • Vibration
        • Robots go through a lot of vibration, especially at competitions
        • Bumpy wheels increase vibration
        • Use Loctite or nylon lock nuts to avoid nuts falling off
        • Check bolted connections and shaft collars frequently
      • Design for assembly and disassembly
        • Fast work necessary at the competition!
        • Leave nuts and bolts accessible