Sunday 1/4 Scrum Notes

  1. What did I do today?
  2. What will I do tomorrow?
  3. What’s standing in my way?


  • Today
    • Considered the various scoring permutations (cf. this spreadsheet)
      • We wrote off litter as a distraction — getting it into a barrel is gravy, clearing it is a last minute thought, scattering it on the other side is a waste of effort (unless someone has a wicked good arm)
      • The highest point yield is for stacking boxes with a barrel on top (duh)
      • Guesstimating time, getting one good stack is the safest bet… but hoping to churn out more (two, three stacks?)
      • Coopertition is vital to success — it boosts our qualifying average _and_ it is the second order sort for qualification.
    • Check out travel lifts… we like that image for lifting
    • Check out this video on tote stacking
    • We’re thinking a simple robot to do this would essentially be a forklift… pick up a box and lift it up high enough to put it on top of another box. Then put it on the bottom box and lift the bottom box. Repeat. Until you’re carrying around a stack.
      • Hang the center of mass of the stack just in front of the front wheel (so we can put our stack down on the step)
      • Be able to lift the bottom box at least 18″ (on top of a box on the step)
      • Stabilize the barrel on top (some sort of moving gantry?)
      • Counter-balance weight of stack by putting battery, motors, etc. in back
      • Some argument about a screw-drive or boot mechanism to propel the stack out of a travel lift structure (entirely enclosed)
    • Requirements
      • stack = 4 gray crates and a barrel (lifted 2″ off the ground = 7′ tall)
      • we want to be very heavy
      • we need a minimum of 2″ ground clearance
      • we probably want bumpers (and a roof)
      • we don’t need mechanism to either put noodles in buckets or litters
  • Planning
    • Watch the video!
    • Read the manual!
    • Read the scrum notes!

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