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Flywheel shooter

Calculator 5

Shared inputs

Example: change to match your robot.

Motor library unverified. Approximate figures from memory, Oct 11, 2026. Verify every row against the vendor sheet.

60 A = 150% of a 40 A breaker

Kraken and Falcon controllers can limit stator current or supply current. Torque follows stator current.

Units

Where the flywheel's energy goes

Example inputs; the calculator updates these with yours. Imperial first, metric in parentheses.

125 JstoredBrake: 1.3 ft·lb back18 lbf per hex corner (81 N)Spin-up: 0.93 s to 3,440 rpm(60 A, 36T:24T step-up)Like dropping 10 lbfrom 9.3 ft4% speed lost per shot(energy only; real loss higher)Belt: 8.8 lbf (39 N)
appliedcalculatedwatchfailure point

Example inputs from the calculator defaults. Losses ignored.

Allowables pending. No verified allowable applies yet, so this is not a pass or a fail.

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How this works

Loads come from inertia: a hard push to spin up, and the wheel pushes back when the motor brakes.

Stored energy can drive torque back through the chain in reverse.

Coast versus brake mode. Compare stop time and compute bore torque for each.

Estimates for learning. Losses are ignored. Verify the numbers before relying on them.

Mechanism guide