Building an FRC Robot In Six Weeks

A six-week FRC build season rewards teams that make clear decisions early. The goal is not to create the most complicated machine in the workshop. It is to build a reliable competition robot, teach students practical engineering, and leave enough time for testing, repairs, driver practice and strategic refinement.

For Australian teams, the schedule may include extra complications: school terms, long freight routes, imported components, GST, limited workshop access and volunteers balancing work and family commitments. A disciplined timeline helps a team in Sydney, Melbourne, Brisbane or a regional town turn a demanding game challenge into manageable weekly targets.

Week One: Understand The Game

The first week begins with the game manual, field videos and scoring analysis. Read the rules together, then ask students to identify scoring methods, cycle times, protected areas, penalties and likely defensive situations. Create a simple ranking of robot functions: essential, useful and optional. This prevents a fascinating mechanism from consuming time while basic mobility remains unfinished.

Run short brainstorming sessions before committing to a design. Students can sketch ideas, build cardboard prototypes and estimate dimensions without worrying about polished CAD. A drive team should observe how the robot will be used from the driver station, while programmers consider sensors, autonomous routines and operator controls from the beginning.

Assign ownership immediately. A mechanical lead, electrical lead, programming lead, business or media lead and safety lead can coordinate work without creating rigid silos. Teams mentoring younger students may find this coach’s team guide useful for thinking about inclusive roles, student ownership and constructive coaching.

Week Two: Choose A Buildable Design

By the second week, the team should select a robot concept and create a rough system architecture. Decide on the drivetrain, major mechanisms, motor types, gear reductions, sensors, pneumatic requirements and expected weight. The best design is one the team can manufacture, wire, programme and repair with its available tools and experience.

Use CAD to check clearances, frame perimeter, bumper space, battery access and maintenance paths. A robot that looks efficient on screen can become frustrating when a gearbox cannot be removed without dismantling three other assemblies. Keep the first version simple, with mounting points that allow a mechanism to be strengthened or replaced after testing.

Australian teams should also review their supply chain at this stage. A part ordered from overseas may face shipping delays, currency changes and GST, while a local supplier such as Jaycar, Altronics or a specialist engineering shop may provide a faster alternative. Keep a written inventory, identify substitutes and avoid making a critical subsystem dependent on one hard-to-source component.

Week Three: Make The Chassis Move

During the third week, build and test the drivetrain before adding ambitious scoring equipment. A dependable chassis gives programmers a platform for autonomous routines and gives mechanical students a reference point for every later mechanism. Confirm that the frame is square, the wheels are aligned, the bumpers fit correctly and the battery can be secured safely.

Wire the basic electrical system with careful labelling and strain relief. Check motor directions, current limits, breaker ratings, CAN connections and radio communication. Students should learn to diagnose faults methodically rather than replacing parts at random. Keep a wiring diagram and photograph the electrical board before the robot becomes crowded.

A functional drivetrain also creates an early opportunity for driver practice. Even an unfinished robot can teach acceleration control, turning, obstacle avoidance and alignment. Teams travelling from regional areas may have fewer shared practice opportunities, so use every available school session, community hall booking or weekend workshop efficiently. A taped practice field on a basketball court or warehouse floor can reveal handling problems early.

Week Four: Add The Scoring Mechanism

The fourth week is for installing the primary game-piece or game-object mechanism. Build the simplest version that meets the team’s chosen strategy, then measure its intake speed, reach, repeatability and recovery time. A mechanism that scores slowly but works every attempt may be more valuable than a high-capacity design that jams under pressure.

Test components separately before integrating them. Check rollers without a full frame, run an arm through its travel limits, and verify that hard stops or software limits prevent damage. Students should record each test in a shared engineering log, including the date, configuration, result and next action. This turns failure into usable evidence instead of vague workshop memory.

Keep serviceability in view. Competition repairs happen while the clock is running, often in a crowded pit with limited tools. Use common fasteners, accessible connectors and modular assemblies. Mark spare motors, belts, sprockets and sensors. If a component is likely to break, design its replacement procedure before the first match rather than during an emergency.

Week Five: Integrate Software And Strategy

By week five, the robot should drive, operate its mechanism and communicate reliably. Programmers can integrate subsystem commands, sensor feedback, driver controls and autonomous paths. Use clear software structure so students can adjust speeds, setpoints and control mappings without rewriting the entire codebase.

Autonomous testing should progress from individual actions to complete routines. Begin with a known starting position, then measure whether the robot can drive straight, identify targets, avoid collisions and complete a scoring sequence. Record battery voltage, timing and success rates. A routine that succeeds eight times out of ten in the workshop may need simplification before it is trusted in a qualification match.

This is also the point to rehearse the human system around the robot. Drivers, human players, technicians, scouts and the drive coach need defined responsibilities. Practise communicating under noise and time pressure. Australian teams should schedule around school calendars and part-time jobs, since six consecutive weeks rarely mean six uninterrupted weeks for every student or mentor.

Week Six: Test, Document And Prepare

The final week is for reliability rather than major invention. Run repeated match simulations with realistic time limits, battery changes and short repair windows. Test every mechanism from different starting positions and include common failure conditions such as a missed alignment, a stalled intake, a disconnected sensor or an unexpected defensive hit.

Use the results to prioritise fixes. A robot that completes its core task consistently should receive attention before an experimental upgrade. Inspect bolts, chain tension, belts, bumpers, wiring, motor temperatures and battery connections after every simulation. Create a pit checklist and a pre-match checklist so routine safety checks do not depend on memory.

Teams can use the Maryland FIRST resource hub for broader guidance on mentoring, volunteering, events and FIRST programme support. When preparing for an event, organise the engineering portfolio, inspection documents, code backups, spare parts and consent records. Adult mentors should also confirm the relevant Australian child-safety requirements: a Working with Children Check is state or territory based, with systems such as the NSW WWCC and Queensland Blue Card operating under different rules. Follow the host venue’s safeguarding policies as well.

A robot is ready when students can explain how it works, repair its common faults and operate it confidently. Finishing every optional feature matters less than arriving with a safe machine, a calm pit crew and a strategy the drive team understands.

Use the six-week sprint as a shared commitment: set weekly demonstrations, publish responsibilities, record decisions and celebrate useful failures. Whether your workshop is attached to a Melbourne school, a Brisbane community makerspace or a Sydney university programme, consistent habits turn limited time into meaningful engineering experience. Start with the rules, build the simplest reliable system, and make every test teach the team something valuable.