Sources

Every published figure on this site comes from one of these, and each tool lists the ones it uses. We re-check them when a new season’s parts or manual come out. A source checked more than a year ago is marked, because VEX changes specifications between seasons.

• Alliance Rubber 37646 distributor specifications (size 64, 0.04" gauge, non-latex)

  Checked August 2026 (2026-08-19)

  Used by Rubber Band Assist Calculator

• Purdue SIGBots Wiki: VEX Battery

  Checked August 2026 (2026-08-17)

  Used by Battery Over a Day, Motor Current & Battery Budget, Voltage Drop & Power Spikes

• Purdue SIGBots Wiki: VEX Motors

  Checked August 2026 (2026-08-17)

  Used by Acceleration & Time-to-Speed, Catapult & Puncher Energy, Four-Bar Lift, Gravity Feedforward, Complete Lift Designer, Lift Speed & Gear Ratio, Required Lift Torque, Mechanical Advantage, Your Motor, Measured, Motor Diagnostics Dashboard, Odometry Ticks per Inch, PID Simulator, Pneumatic or Motor?, Pushing Force & Traction Limit, Whole Robot Design Check, Shared Motors, Torque & Stall Check, Shaft & Structure Load Check, Two-Bar Lift

• Robosource: VEX-compatible nylon spacers & washers (size listings)

  Checked August 2026 (2026-08-17)

  Used by Spacer Stack Calculator

• Spartan Design: Override manual summary

  Checked August 2026 (2026-08-17)

  Used by Autonomous Value, Endgame Timing, Match Score Model, Motor Power Budget Checker

• Standard #64 rubber band dimensions

  Checked August 2026 (2026-08-19)

  Used by Rubber Band Assist Calculator

• V5RC Override Game Manual v1.1 (2026-27)

  Checked August 2026 (2026-08-17)

  Used by Match Air Budget Calculator, Alliance Selection, Autonomous Time Estimator, Autonomous Value, Motor Current & Battery Budget, Cylinder Force Calculator, Cylinder Mount Finder, DR4B Geometry Calculator, Endgame Timing, Four-Bar Lift, IMU Drift, Complete Lift Designer, Line Tracker Threshold, Match Score Model, Cylinder Pivot & Lever Force, Pneumatic Mechanism Reliability, Pneumatic or Motor?, Motor Power Budget Checker, Whole Robot Design Check, Autonomous Route Optimizer, Run Timer, Shared Motors, Shooter Type Comparator, 18" Footprint Checker, Two-Bar Lift

• VEX High Strength Sprocket & Chain Kit (276-2252), kit contents

  Checked August 2026 (2026-08-17)

  Used by Chain Length Calculator, Chain & Sprocket Ratio Calculator

• VEX Library: Understanding V5 Smart Motor (11W) Performance

  Checked August 2026 (2026-08-17)

  Used by Mechanical Advantage, Voltage Drop & Power Spikes

• VEX Library: Understanding VEX V5 Wheels

  Checked August 2026 (2026-08-17)

  Used by Acceleration & Time-to-Speed, Drivetrain Type Comparator, Drivetrain Speed Calculator, Odometry Ticks per Inch, Pushing Force & Traction Limit, Gear Ratio Solver, Whole Robot Design Check, Tracking Wheel Setup, Wheel Travel Calculator, X-Drive Speed & Strafe

• VEX Library: Using V5 Washers and Spacers

  Checked August 2026 (2026-08-17)

  Used by Spacer Stack Calculator

• VEX Robotics: C-Channels (8 sizes)

  Checked August 2026 (2026-08-17)

  Used by Bearing Load & Support Placement, Four-Bar Lift, Gear Spacing Calculator, Shaft Deflection, 18" Footprint Checker, Shaft & Structure Load Check, Two-Bar Lift

• VEX Robotics: Gears

  Checked August 2026 (2026-08-17)

  Used by Catapult & Puncher Energy, Drivetrain Speed Calculator, Flywheel Design Studio, Gear Ratio Calculator, Gear Spacing Calculator, Gear Train Calculator, Intake Designer, Complete Lift Designer, Lift Speed & Gear Ratio, Required Lift Torque, Mechanical Advantage, Gear Ratio Solver, Shaft Deflection

• VEX Robotics: Optical Shaft Encoder (276-2156)

  Checked September 2026 (2026-09-16)

  Used by Tracking Wheel Setup

• VEX Robotics: V5 Robot Battery Li-Ion 1100mAh (276-4811)

  Checked August 2026 (2026-08-17)

  Used by Battery Over a Day, Motor Current & Battery Budget, Voltage Drop & Power Spikes

• VEX Robotics: V5 Rotation Sensor (276-6050)

  Checked September 2026 (2026-09-16)

  Used by Tracking Wheel Setup

• VEX Robotics: V5 Smart Motor & Gear Cartridges (276-4840)

  Checked August 2026 (2026-08-17)

  Used by Acceleration & Time-to-Speed, Catapult & Puncher Energy, Drivetrain Type Comparator, Drivetrain Speed Calculator, Flywheel Design Studio, Four-Bar Lift, Intake Designer, Complete Lift Designer, Required Lift Torque, Your Motor, Measured, Motor Diagnostics Dashboard, PID Simulator, Motor Power Budget Checker, Pushing Force & Traction Limit, Gear Ratio Solver, Whole Robot Design Check, Shared Motors, Shooter Type Comparator, Torque & Stall Check, Shaft & Structure Load Check, Two-Bar Lift, X-Drive Speed & Strafe