SEASON 2025-2026 // DECODE

OUR ROBOT

High-velocity artifact scoring system capable of 3-shot bursts in under 1.0 seconds.

Exodius FTC Robot
WEIGHT: 11.8KG
BURST: <1.0 SEC
DRIVE PULLEY SYSTEM
LOCALIZATION PINPOINT + LIMELIGHT 3A
TRANSFER INSTANT FEED

Strategic Analysis

STRAT.01 // PRIORITY

Artifact Focus

Math analysis proved 10s cycling (artifacts) yields higher OPR than 20s endgame structures. Focused purely on rapid shooting.

STRAT.02 // PHYSICS

Trajectory Math

Modeled launch speed and peak height parabolas to validate scoring from both "Close" and "Far" zones before CAD.

STRAT.03 // CHASSIS

Center of Gravity

Switched to Pulleys to center-mount all motors. Low COG makes the robot nearly impossible to push during defense.

Subsystem Breakdown

SYS_01 // DRIVE ARCHITECTURE

  • CHASSIS: Custom Parallel-Plate (Laser Cut)
  • DRIVETRAIN: Belt & Pulley (No Gears)
  • ODOMETRY: GoBilda Pinpoint Computer
  • VISION: Limelight 3A (3D AprilTags)
  • PATHING: Pedro Pathing (Bézier Curves)
>> SYS.DRIVE.LOG_01
  • MOTORS: 4x GoBilda 312 RPM
  • TRANSMISSION: Pulley (Zero-Slip)
  • IMU_FUSION: Pinpoint + Control Hub
  • LOC_DRIFT: < 0.5 inches
  • PATH_ALG: Bézier Curve Interpolation
  • ANTI_DEFENSE: Low_Center_Mass
  • MAINTENANCE: Quick-Swap Plates
>> SYS.SCORE.LOG_02
  • FLYWHEEL: 96mm Rhino (60A)
  • INERTIA: 2x Hogback Weights
  • COMPRESSION: 4.0mm Constant
  • HOOD: Adjustable Servo Turret
  • BURST_RATE: 3 Shots / 0.9s
  • INTAKE_L1: Bootleg (Ground Grip)
  • INTAKE_L2: Gecko (Compliance)

SYS_02 // SCORING ENGINE

HYBRID INTAKE

4-Stage system powered by 435 RPM motor. Uses "Bootleg" wheels for ground grip and "Gecko" wheels for compliant transfer. Jam-free geometry.

INSTANT TRANSFER

Replaced "Kicker" with 42mm cut-down Gecko transfer wheel. Eliminates dwell time, feeding artifacts instantly into the 6k RPM shooter.

Development Log

ITERATION I

RAPID PROTOTYPE

2-Wheel Shooter & 5-Row Bootleg Intake. Validated concept but intake was too narrow and shooter inconsistent.

ITERATION II

THE KICKER

Added Turret Hood & Kicker. Accuracy improved, but the Kicker mechanism slowed down cycle times significantly.

ITERATION III

FINAL FORM

Replaced Kicker with Transfer Wheel. Added Hogback weights. Achieved "Instant Feed" status (3 shots < 1s).

Software Architecture

LIB.01 // PEDRO

Pedro Pathing

Advanced path following using Bézier curves allows for smooth, continuous motion rather than stop-and-turn navigation.

LIB.02 // NEXTFTC

Command Based

Utilizing NextFTC to organize code into subsystems. PID controllers manage flywheel velocity to compensate for battery voltage drop.