Robotics Education & Competition Foundation
Online Challenges

Vex 2018-2019 challenge: Post Season


Entry ID #: 4650
Created: Mon, Jan 8, 2018 6:34 PM

Overview Vex challenge Post Season is played on a 12x12 foot field consisting of 6x6 foam tiles surrounded by a field perimeter. Teams may score points by scoring balls in the posts, placing their team flag into purple areas claiming all points in the corresponding clear post, putting cubes in the cube zone, and stacking cubes on other cubes in the cube zone. The field elements consist of 48 balls from VEX Challenge: Nothing but Net, 10 cubes from VEX Challenge: Starstruck, and 2 flags designed for this challenge. A cube and 9 balls are available as match loads for each alliance, or may be used as preloads for the robot to use at the start of a match. Scoring: Cube in bottom layer of cube zone - 4 points each (considered inside cube zone if no part of the cube is touching outside of the tape) Cube in cube zone supported by other cubes - 8 points each (Considered in top layer if cube is entirely resting on cubes inside cube zone.  Stacked cubes do not count as stacked if they are touching the field perimeter, but still count as in the cube zone for 4 points.) Flags inside area marked with purple tape - 5 points (flag is considered inside the zone if the post of the flag is within the purple tape line, base of flag does not count.) Each ball inside clear posts - 2 points for each team with their flag in the corresponding marked area (if both teams posts are in one purple area, they both get the points for the clear post) Each ball in team’s colored post - 2 points Rules: Robots may not pin other robots, but defence is allowed. Robots may not intentionally remove scoring objects from the field. Scoring objects removed from the field will not be returned. Robots may descore balls in the posts but not cubes in their cube zone. Robots must start by touching part of the field perimeter and part of one of the team’s colored tiles - Only one robot per starting tile. Robots must start in a 18x18x18 inch area. Robots may expand infinitely upwards and across 48 inches (two field tiles). Robots may grab their team’s flag post but may only push and not grab other team’s flag post. Robots must always have easy access to grab their flag from an opponent. Robots may not hoard/block any cubes or large amounts of balls. Robots may posess a maximum of 4 balls and 2 cubes at a time Field Elements/Scoring Explanations There are two 36 inch high scoring posts each with a corresponding area marked with purple tape. Each ball placed inside the posts will count as 2 points to whichever team has their flag inside the corresponding purple area. Descoring is allowed, but the round shape of the ball will make it difficult to grab through the cutout of the post. There is a 40 inch tall large post in the middle with two 26 inch tall bonus posts, one red and one blue, and a rotatable platform at the bottom with one red and one blue platform. Each ball inside your team’s scoring post will count as 2 points as well, but if the platform is not rotated under your post the balls will fall out. If a middle post has balls stacked inside, the opponent may rotate the base under their post causing all the balls to fall out, so teams must be on careful watch of their opponents. There are also two marked zones, one for each team, called cube zones. Cubes inside the cube zone touching the ground will count as 4 points each. Any cubes in the cube zone completely supported by other cubes will count as 8 points each. Flags inside the purple area count as a bonus 5 points to that team as well. In Depth Scoring Object Review Cubes are from VEX 2016-2017 Challenge: Starstruck. They have a side length of 12.5”, and are made of a soft soft, pillow body. They are quite difficult to stack, so teams must be able to make a sturdy, structural base before stacking another cube on top or it will fall off. The flags are made of a light, smooth plastic material with a cotton material for the flag itself, and were designed specifically for this challenge. The balls are from VEX 2015-2016 Challenge: Nothing but Net, and are rigid, spherical balls. They have a diameter of 4”, and the round, spherical shape make them hard to pick up off the ground and from the crates they start from. The crates have no purpose other than to hold the balls at the beginning of the match and to cause a roadblock for robots to have to avoid when they have been scattered throughout the field during the match. The flags were designed specifically for this challenge. The flags are very light, making it easy to tip over, so they must be handled with caution. The flags are made of a smooth plastic material, and the unique design of the flag requires teams to think of interesting ways to carry and push it. Challenges with the Scoring Objects The variety of shapes, sizes, weight, and material require the teams to take all of the different aspects of each scoring object into consideration while designing their robot. The different aspects of each scoring objects also play a specific role to the scoring of the object. For example, the cubes are pillow objects, and the challenge is to stack the cubes, so teams need to take into account the fact that the pillows are rigid and do not create structural stacks from the beginning. The balls are spherical objects, making them hard to grip and drop into the posts with precision. The round shape also makes them hard to grip while attempting to de-score the balls from the posts. The flags are very light, and will be swiftly moving around during the match to claim the post with the most amounts of balls and to descore opponents flags, but must also be handled with care or they will tip over, becoming difficult to get back up and maneuver. The smooth plastic material also makes the flags hard to grip, especially with the awkward shape. Credits: Animation, Sound, Modeling, Graphics, Rendering, Physics Simulations, Editing, and Narration done by Owen Leather Game Design by all members of Vex team 5297F Music: Jim Yosef - Firefly Thanks NoCopyrightSounds for providing the great music! Check out the music creator, Jim Yosef, with the rest of his amazing work! Youtube: Soundcloud: Twitter: 5297F Dalex


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