Robotics

Former Captain and Lead Designer for Galileo Robotics, FIRST Robotics Competition Team 4669.

FRC SEASONS OFFSEASON

FRC SEASONS

2021 2020 2019

FIRST Robotics Competition

Galileo Robotics — FRC Team 4669

Founded in 2013, Galileo Robotics is a team of high school students from the Galileo Academy of Science and Technoloy in San Francisco that competes in the FIRST Robotics Competition. We seek to inspire and encourage future generations of engineers, scientists, and tech workers from all backgrounds. We have several subteams--from programming to mechanical to 3D modeling--that allows everyone to build their skillset and work effectively as team.

I joined the team in 2018 with little technical skill or experience. With the help of my amazing mentors and subteam leaders, I was able to quickly progress and improve my skills in parametric 3D modeling (CAD) using Autodesk Inventor and robot design. I am honored to have been Galileo Robotics' Captain and Lead Designer.

WEBSITE

FRC 2021 Season

Game Changers

Due to the COVID-19 pandemic, the FRC 2021 season, Game Changers, will be held virtually. There are two virtual competitions: the Game Design Challenge and the Innovation Challenge. Additionally, a portion of the 2021 season involved a replay of the FRC 2020 season, Infinite Recharge, though held virtually in the form of time trials.

I CAD-ed the field and various game elements as well as contributed to the game mechanics of this year's virtual Game Design Challenge. The task was to create a FIRST Robotics Competition style game for future years. Our submission, Data Chain, incorporates features of previous FRC competitions as well as adding new features, such as a cylindrical game piece, button boards, and a chain climbing element.

The full details about our design can be found in the technical submission. The full 2021 Game Design Challenge rules can be found here.

DATA CHAIN

VIEW TECHNICAL SUBMISSION



Because the robots created following the 2020 rules will be allowed to play during 2021, I decided to redesign our 2020 robot during the offseason (COVID hiatus). Below is my redesign of our 2020 robot, dubbed 'Sentinel'. It incorporates new techniques, solves previous design issues, and uses new manufacturing techniques (such as square tubing and riveting).

SENTINEL

DOWNLOAD (.STEP) DOWNLOAD (INVENTOR)

FRC 2020 Season

Infinite Recharge

The FRC 2020 season, Infinite Recharge, was the first season where I was Lead Designer. We wanted the robot to be able to perform all aspects of the game; intaking and storing balls, scoring in the top port, spinning the color wheel, and climbing.

The full 2020 Infinite Recharge rules can be found here.

GR-8

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FRC 2019 Season

Destination: Deep Space

The FRC 2019 season, Destination: Deep Space, was my first FRC season. I mainly worked on prototyping and learning Autodesk Iventor and CNC-ing. Our design featured an 'arm' which had a multipurpose 'hand' that allowed us to score the balls and panels in the game. The design also had a double elevator that allowed us to climb the platform.

The full 2019 Deep Space rules can be found here.

2019 Season Recap

OFFSEASON PROJECTS

InspireNC CAD Challenge
Differential Swerve Module
Ratio Gearbox
High-Spread Gearbox
Triple Falcon
Totebot

InspireNC CAD Challenge (2020)

Green Generation

In July 2020, InspireNC hosted a CAD challenge that would help FRC teams sharpen their CAD skills.

Their game, Green Generation, was setup like a FRC game and much of the general construction rules were the same. The game had several objectives: score 4" wheels, score tennis balls, and climb a hoop. The full Green Generation rules can be found here.

REVOLUTION

This experience vastly helped to improve my CAD skills, as I learned many new techniques for robot design. I also realized that 8020 extrusions are not a good choice for robot construction. I complied a list of reasons as to why square tubing is better. I was also able to convince my team to investigate the use of square tubing as we have been using 8020 extrusions for the past 5 years.

DOWNLOAD (.STEP) DOWNLOAD (INVENTOR)

Differential

This is a design for a dual speed swerve module intended for use in the FIRST Robotics Competition. It is driven by two Falcon 500 motors and is capable of switching between two gear ratios; this provides excellent speed as well as torque. A NEO 550 coupled with a high gear reduction swivels the wheel. Most of the components must be custom machined.

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Ratio

This is a design for a dual speed gearbox intended for use in the FIRST Robotics Competition in drivetrain styles like tank and west-coast. It is a dual speed gearbox, capable of shifting between two gear ratios depending on whether you need more speed or more torque. The gearbox is powered by two Falcon 500s. It is designed to be more compact than similar commerical off the shelf gearboxes while still having three stages and a wide array of gear ratio combinations.

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High-Spread Gearbox

This is a design for a 38.44x spread shifting gearbox intended for use in an elevator in FRC. The high gear (8.57:1) is meant to extend the elevator quickly, and the low gear (329.59:1) is used to get enough torque to climb. All of the components (except the plates which need to be CNC'ed) can be bought from commercial suppliers (mainly VexRobotics and West Coast Products).

This is more of a concept design; although it can be built, it is quite impractical due to its size and weight. It also has a large amount of stages which will reduce efficiency.

DOWNLOAD (.STEP) DOWNLOAD (INVENTOR)

Triple Falcon

This is a custom gearbox for a FRC robot drivetrain. It is a compact, dual speed gearbox powered by three Falcon 500 motors. The high gear is 2.14:1, and the low gear is 10.71:1; the spread is 5x.

The goal of this gearbox is to be both an immoveable object and an unstoppable force. This gearbox has ridiculous amounts of power in a compact footprint.

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Totebot

Coming Soon