Unit 4: Vex Claw Bot

Structural Components: The difference between Keps nuts and Nylock nuts, and the appropriate use of standoffs versus beams.

Drivetrain Mechanics: How power is transferred from the motors to the wheels (direct drive vs. geared).

Manipulators and End Effectors: The mechanical advantage required for a "claw" to grip and an "arm" to lift.

Center of Gravity: How the weight of the claw and battery affects the robot's stability and tipping point.

Wiring Schematics: How to properly port motors to the VEX Brain to ensure software compatibility later.

Interpret Technical Diagrams: Follow multi-step assembly instructions to build the chassis, tower, and arm.

Tool Management: Demonstrate the correct use of hex keys, wrenches, and pliers without stripping hardware.

Mechanical Troubleshooting: Identify and fix "friction points" (e.g., axles that are too tight or gears that aren't meshing).

Cable Management: Organize and secure wiring using zip ties to prevent tangles or unplugging during operation.

The Swept Away Tournament: Students participate in a round-robin style tournament. Success is measured not just by the final score, but by a Post-Game Engineering Report where students must:

1. Analyze one specific mechanical failure or success they had during the match.

2. Explain how they would modify their gear ratios or claw grip to improve their "objects-per-minute" rate.

3. Demonstrate a "Safety & Integrity" check, proving their robot survived the match without losing parts.