The Longhorn Robotic Team

Danwanth Jeyakumar and Andrew Choi

The Robotics Team’s Chassis and Intake

We are Longhorn Robotics Team #13274, the official robotics team of Leigh High School since 2017. The team is composed of a diverse group of students of all ages and backgrounds who currently attend Leigh High School. The primary goal of the club is to teach people about competitive robotics and robotics in general. We prepare students for FTC (First® Tech Challenge) which we have usually around February. This year we will be competing in a qualifying tournament on April 10th. 

The competition this year is called “Ultimate Goal” in which teams compete in an alliance format and aim to score as many points as possible using the different scoring methods. Each team in this challenge consists of up to two drivers/operators: two human players and a coach. And you will also have an alliance of one more team to work with. Each round is divided into three sections: Autonomous, Teleop, and Endgame. The Autonomous period consists of controlling the robot through pre-programmed functions, while in the Teleop and Endgame, the team is able to manually maneuver the robot. Each period of the game consists of both unique and similar scoring possibilities. The goal of this competition is to get the most points possible using different scoring techniques. The different techniques include shooting a ring through the tower goals, moving the wobble goal, etc.

To meet this challenge we have made a robot consisting of an intake mechanism, launcher, arm, and chassis. Our intake mechanism relies on a flywheel, or compliant wheel system to pull the ring into the robot. The structure of the flywheel system uses REV® and Tetrix® parts, as well as flywheels from Andymark®. From here, the ring will proceed into the launcher so we can shoot the ring into the tower goals. Both the launcher and intake are powered by REV® servo motors. 

Another method to score points is by using the wobble goals, and lifting them over the edge. For this task, we made an arm, which will allow us to lift the wobble goal over the edge of the playing field to earn some points. This system uses REV® parts and REV® servo motors as well. 

All of this is built on top of the Chassis, which is built from a GoBilda® Straffer Chassis Kit®. This kit includes the wheels, frame, and motors to power the robot. We have also attached a hub to this; the hub is where the code and power source will be located. There will also be odometry modules (motion sensors which can estimate the robot’s position relative to the starting location) to guide the robot, so it does not crash into any walls, during the autonomous period. All of these elements can be combined to form a robot that can provide the best possible results in this competition.

Last year we had some difficulties because we changed our design multiple times. Last year we had some difficulties because we changed our design multiple times, so our robot, unfortunately, did not work by the competition date. However, we learned from the previous year that we should have a design brainstormed before the building process starts. This year, with the experience in mind from last year, we made a lot more progress and expect to have the robot finished by the competition.

Longhorn Robotics, as a team, will hopefully continue to represent the school for many more years to come. And we hope to teach many more students as well as compete and grow our team in the future.

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