Friday, November 3, 2017

November Mission Model Discussion: M02 - FLOW

Welcome to the November Mission Model Discussion! From now until just before Thanksgiving this space will feature ONE part of the FIRST LEGO League HYDRO DYNAMICS 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!

At the Begining of the Match: The Pump System Model is dual locked to the North wall of the field. This position may vary slightly from field-to-field as the mat is placed flush against the South wall and any excess space in the field will be along the North wall of the field. The Big Water is placed inside the Pump System fully inside the square mechanism which tilts, not on the LEGO axles.  NOTE: If your team has a shorter wall on your practice field you should move the dual lock down on the model so it is fully on the wall.  Remember Oregon competition fields all have full 2x4 walls, which are not altered after purchase.
Required for Scoring: The Big Water is moved to the other team's field.
Conditions:  The Big Water can only be moved by using the Pump System's valve(s) mechanism.
Score: 25 Points
Note from Oregon Head Referee Tom:  After the Robot turns one of the valves, this mission scores immediately when the Big Water enters the other team’s Field (the volume formed by the inside border walls of the other team’s field)*. Scoring for this mission does not wait for the end of the match. This is a cooperative mission, since the Big Water may score points for the other team under their M16.
*Referees may rule Interference if your robot removes the Big Water from the other team’s Pump System before they can perform M02.

Real World Impact: Water pipes use gravity to keep water moving through the system. Sometimes water needs to be moved against gravity to keep the system going. When this is the case a pump system, sometimes called a lift station, is used at a low point on the waterline. Pump Stations are also used to lift water over obstacles like hills, or the game wall.

Discussion: Not only is the FLOW mission good for 25 points for your team, it can help the other team score additional points, sometimes! What does your team feel the value of completing the FLOW mission is? Do you hope the other team at your event will be doing this mission?

2 comments:

  1. Any tips on knowing the model is built correctly? Like how much should it tilt the water down vs. how hard/far to turn the front handles. A video showing a proper working model would be very helpful.

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    Replies
    1. Robo Dragons I do not currently have a video showing the correct working model. However, one of the best things to do is to take the cover off of this model and check the pieces. There are some pieces that can easily be mistaken if care is not taken to get the right color peg, or to use the ball joint rather than a black friction connector. If all of the pieces are correct, the motion is likely correct.

      In the case of this model a ~1/4 rotation of either or both valves should cause the center mechanism to tip just enough to roll out the big water along the long axles. It is not a fast nor big motion. I will see if I can get a video to post within the next week. I will post it here in the comments.

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