Team Mejor

1
Team Mejor

• Mobility

2
Wheels

• 3 Wheels
• 2 Front Driven Wheels
• Smaller Caster Wheel Drags Behind
• Large Front Wheels Centered on Chassis

3
Turning

• Allows Turning About Point
• No Hopping or Plowing
• Can Be Oriented as Accurately as Compass Allows

4
Design Variables

• Wheel Radius
• Wheel Thickness
• Width Between Wheels
• Distance Between Front and Back Wheels
• Motors/Gearing/Belts/Pulleys
• Material
• Caster Moment Arm

5
Analysis Tools

• Mechanics
• Dynamics
• Newtons Laws
• Optimization
• Modeling
• Experimentation

6
State Variables

• Speed
• Cost
• Weight
• Power
• Stability
• Traction

7
Measures of Merit

• Simplicity
• Accuracy
• Cost
• Durability
• Assembly Time
• Number of Parts
• Precision
• Speed

8
Possible Problems

• Shopping Cart Effect
• Stopping or Coasting
• Balancing Weight
• Accurate Turning
• Motor Synchronization