Monday, November 5, 2018

November Mission Model Discussion: M04 - CRATER CROSSING (Updated - 11-7)

Welcome to the November Mission Model Discussion! From now until just before Thanksgiving this space will feature ONE part of the FIRST LEGO League INTO ORBIT game challenge per day. The Robot Game is only 1/4th of the overall FIRST LEGO League challenge for teams this year!
This post is meant to be an aid, not a replacement for carefully reading the Challenge Guide and Updates!




Today we will explore M04 - CRATER CROSSING

At the Beginning of the Match

The Crater Crossing model is secured to the mat in the Northwest quadrant of the mat. The gate on the West side of the model is raised to its highest position. The flag on the North tower of the Crater Crossing is down.

Required for Scoring

All weight bearing features of the crossing equipment must cross completely between the towers of the Crater Crossing model AND that crossing must happen from the East side of the Crater Crossing, over the model to the West of the Crater Crossing model completely past the flattened Gate.

Update (11-7)

Every year there are Missions designed to benefit teams who read the text that one extra time, and notice what it’s not saying - to discover the hidden freedoms, and solve the Mission differently, and maybe more easily than everyone else, while still scoring the points... This is not one of those Missions. This one’s just to see if you can navigate over an upraised, uneven surface. For this Mission, you need to make something which

  • starts completely east of the Craters
  • crosses westward over the Craters
  • and ends up completely west of the flattened Gate.

It does not matter if a separate object throws, pulls, pushes, carries, places, or paves the way for the actual crossing equipment, as that would be a separate object and not considered part of the crossing equipment. Anything CONNECTED to the crossing object however, is PART OF the crossing equipment, and that also needs to cross. Finally, if the crossing equipment places weight on the Mat and/or Craters, all weight-bearing spots need to go between the Towers during the crossing action.

Points

0 - Not all of the scoring conditions are met or the mission was not attempted.
20 - All of the conditions for scoring are met

Note from Oregon Head Referee Tom

Review the “Technically Speaking” text carefully. Observe what the mission rules say, and what they do not say. Remember that the “Simply Speaking” text is not used for scoring the mission.

Real World Impact

Rovers on asteroids, moons, and planets need to be able to navigate rough terrain without human aid. A rover or other automated equipment getting stuck can be a very expensive mistake. Because of the difficulty for humans to travel in space using rovers is a practical way to access resources and explore.  

Discussion

This mission is very close to Base, but it also requires some precision driving to turn fully around and pass between the poles of the model. This is a good mission for new teams, but can get harder for teams with more complicated and larger robot systems.  The craters do pose a challenge for teams using a caster wheel to pass over the craters. The language of the rule does allow for crater crossing equipment, but be careful, weight-bearing and fully between the poles are very important here!

4 comments:

  1. What's still not completely spelled out but probably assumed is: Do the weight bearing spots need to be bearing weight while crossing the crater or do they just need to all be bearing weight after crossing?

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    Replies
    1. They must not be connected to a different weight bearing device that does not also cross the crater. They must fully support their own weight and transit from the East to West of the craters and it's bar.

      Does this help clarify?

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  2. My real question is can an object be thrown across or does it need to be bearing its weight while crossing? What may rule this out is the FIRST statement that this mission is NOT one where a strategy can be based on what is NOT said. Hence the question: Do the weight bearing points need to be bearing weight while crossing the crater.

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  3. Your crossing equipment must fully pass between the towers in it's entirety. It can not be attached to, or supported physically by an object that does not pass fully between the towers. -Unofficial Clarification.

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