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📋 Engineering Worksheets & Calculators

Welcome to the FLL Robot Simulator Interactive Worksheets hub!

Building successful competition attachments for FIRST® LEGO® League requires good engineering habits. These interactive worksheets and calculators help students, mentors, and coaches test mechanical ideas and calculate dimensions before spending hours assembling and taking apart plastic LEGO bricks.

🛠️ Available Worksheets

  • :material-vector-polyline: LEGO® Technic 4-Bar Linkage Simulator

    Design parallel forklifts, windshield wipers, dumping arms, and walking legs! Input beam lengths in authentic LEGO Technic hole sizes (studs), drag the motor crank, and watch the output motion path in real time.

    • Key Features: Grashof mobility classifier, LEGO beam hole selectors, interactive 60 FPS canvas, motion path tracer, and real-life gotchas.
    • Recommended for: FLL robot attachment designers, mechanics classes, and STEM students.

🎯 Educational Philosophy: "Math You Can Touch"

All worksheets in this series follow three core principles:

  1. LEGO Native Units: We use holes and studs (1 hole = 8 mm) rather than abstract millimeters or inches so 9-to-14-year-old students can grab parts directly from their SPIKE Prime or MINDSTORMS bins and build what they see on screen.
  2. Visual & Intuitive Physics: Concepts like Grashof's theorem, transmission angle, gear ratios, and torque are explained using relatable metaphors (windshield wipers, playgrounds, umbrellas) rather than walls of algebra.
  3. Deep-Dive Ladders: For high school students, FRC mentors, and inquisitive kids, each worksheet links to the formal mechanical engineering theory (Freudenstein equations, trigonometry, vector loops) so learning never hits a ceiling!