Challenge: Three Squares - Accuracy Challenge

Submitted by amohan on 22 July, 2011 - 14:55
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Participants:                            Team

                              

Objective:                                To draw 3 squares on top of each other.

 

Points Possible:                       100

Rules and Procedures: 

You will need about a four foot by four foot white board that can be laid on the floor. You should use a dry erase marker with a rubber band to hold it to your assembly.

  1. The robot can start anyplace on the white board.
  2. You need to make an approximately 90 degree turn.
  3. Each straight line of the square should be at least 1 foot long.
  4. You have unlimited time.
  5. The 3 squares need to be consecutive.
  6. Minor pen skips are ok if it is easy to see where the line is.
Grading Guide: 

 

We grade the parallel lines (corners can be rounded or any shape).

  1. You get unlimited attempts to do the challenge correctly for full points
  2. If the lines on the sides of the squares are within 1-inch of each other you can get 100 points.
  3. If the lines on the sides of the squares are within 1 1/2-inchs of each other you can get 90 points.
  4. If the lines on the sides of the squares are within 2-inchs of each other you can get 80 points.
  5. If the lines on the sides of the squares are within 3-inchs of each other you can get 70 points.
  6. If the lines on the sides of the squares are within 4-inchs of each other you can get 60 points.
  7. Scores under 60% are not acceptable and you must keep trying.
Notes: 

 

  1. You can practice as much as you want. 
  2. Tell your instructor when you have an official attempt.  Your instructor should be able to clearly see your lines.
  3. You can slow your robot down using gears.
  4. If your wheels are slipping you may want to clean your wheels or the surface of the white board.
  5. Friction can make a big difference on this challenge.  There are a lot of places that friction can affect your robot performance.  The friction of the pen on the white board can also be a factor.
Education Level: 
Any
High School
HW Platform: 
NXT
SW Platform: 
NXT-G