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Mechanical Pathway

The Mechanical pathway trains students to understand motion, loads, packaging, and reliability. Students progress from recognizing simple mechanisms to designing and validating integrated subsystems that survive real match conditions.

Core Public Resources

Level Pages

Level 0: Exposure

Learning objectives

  • Recognize common mechanisms and structural elements on competition robots
  • Understand that mechanisms transfer force and motion with tradeoffs
  • Learn safe assembly habits

Required skills

  • Identify gears, pulleys, chain, shafts, bearings, fasteners, and spacers
  • Use basic hand tools safely with supervision

Core concepts and theory

  • What a mechanism is
  • Structure versus motion
  • Basic examples of intake, drivetrain, shooter, arm, and elevator systems

Hands-on activities

  • Explore simple gear and pulley kits
  • Disassemble and reassemble a small mechanism
  • Compare two mechanisms that solve the same job differently

Suggested mini-projects

  • Build a simple roller intake model
  • Assemble a small drivetrain or gearbox kit

Assessment of mastery

  • Student identifies major parts and explains basic motion transfer
  • Student uses tools and fasteners correctly under supervision

Common mistakes and troubleshooting

  • Overtightening moving joints
  • Mixing hardware lengths or thread types
  • Ignoring alignment during assembly

Expected outcomes

  • Ready for guided mechanism assembly and basic calculations

Level 1: Foundations

Learning objectives

  • Understand ratios, torque, speed, leverage, and support
  • Assemble and evaluate simple power transmission systems
  • Learn how tolerances and alignment affect performance

Required skills

  • Measure dimensions accurately
  • Assemble shafts, gears, pulleys, and bearings cleanly
  • Read a simple drawing or assembly sketch

Core concepts and theory

  • Gear and pulley ratio basics
  • Mechanical advantage
  • Bearing support and shaft deflection
  • Fastening and retention

Hands-on activities

  • Build sample chain, belt, and gear stages
  • Compare output speed across different ratios
  • Assemble a simple arm or lift prototype

Suggested mini-projects

  • Ratio test stand
  • Basic wooden or aluminum gearbox prototype

Assessment of mastery

  • Student calculates a target ratio and builds a working example
  • Student identifies binding, slack, and misalignment issues

Common mistakes and troubleshooting

  • Unsupported shafts
  • Misaligned sprockets or pulleys
  • Ratios selected without regard to motor performance

Expected outcomes

  • Can support prototype mechanism assembly and analysis

Level 2: Application

Learning objectives

  • Build complete prototypes and evaluate performance
  • Use testing to connect calculations with real behavior
  • Package mechanical systems so they integrate with CAD, wiring, and software

Required skills

  • Interpret loads, support needs, and assembly order
  • Work from CAD or sketches
  • Record test results clearly

Core concepts and theory

  • Load paths and failure points
  • Friction, backlash, compliance, and efficiency
  • Packaging, center of gravity, and service access

Hands-on activities

  • Build and test a subsystem prototype such as an intake, climber, or shooter
  • Compare performance across design variants
  • Install the subsystem on a training frame or robot

Suggested mini-projects

  • Intake prototype comparison
  • Mini elevator or arm with measured load testing

Assessment of mastery

  • Student delivers a working mechanism and explains tradeoffs
  • Student uses data or observation to justify revisions

Common mistakes and troubleshooting

  • Changing too many variables at once during testing
  • Ignoring maintenance access
  • Underestimating shock loading and repeated impacts

Expected outcomes

  • Can own design and testing of a simple FRC subsystem

Level 3: Leadership

Learning objectives

  • Lead subsystem design from concept to tested assembly
  • Balance performance, simplicity, reliability, and schedule risk
  • Run iterative reviews and make evidence-based revisions

Required skills

  • Generate and compare concepts
  • Run prototype reviews with adjacent subteams
  • Identify design risk before fabrication is complete

Core concepts and theory

  • Trade studies
  • Robustness versus complexity
  • Design for assembly, maintenance, and field repair
  • Strategy-driven mechanism design

Hands-on activities

  • Lead a subsystem from concept sketches to practice testing
  • Coordinate with CAD, Manufacturing, Electrical, and Programming on interfaces
  • Run failure analysis after testing

Suggested mini-projects

  • Final shooter or intake architecture
  • Drivebase packaging and serviceability review

Assessment of mastery

  • Student leads a design review with clear requirements and evidence
  • Subsystem performs to target and can be serviced efficiently

Common mistakes and troubleshooting

  • Chasing novelty over match value
  • Locking into one concept before prototyping
  • Ignoring repairability and spare strategy

Expected outcomes

  • Can lead mechanical development for a major subsystem

Level 4: Mentor

Learning objectives

  • Guide full-robot mechanical strategy and subsystem standards
  • Teach concept development, prototyping, and review methods
  • Build continuity across years and across teams

Required skills

  • Coach students through tradeoffs instead of just choosing for them
  • Create reusable standards and templates
  • Translate game strategy into training priorities

Core concepts and theory

  • System-level design
  • Knowledge transfer
  • Standardization without stagnation

Hands-on activities

  • Run a mock kickoff concept process
  • Review another team’s subsystem for risk and manufacturability
  • Update design standards after the season

Suggested mini-projects

  • Team mechanical handbook
  • Reusable drivetrain or manipulator standards package

Assessment of mastery

  • Students trained under this mentor produce stronger first-pass designs
  • Team avoids repeated mechanical failures because lessons were preserved

Common mistakes and troubleshooting

  • Solving problems for students too early
  • Standardizing weak designs
  • Failing to capture why a design succeeded or failed

Expected outcomes

  • Can mentor mechanical strategy and subsystem design across multiple teams or seasons