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6-Wheel Rocker Bogie Design
Pros:
- less ground pressure
- requires less friction
- better cornering
- better at handling uneven terrain
- minimize drag and reduce lift
- better safety (if one tire blows, less likely to lose control)
- increased stopping power
- less unsprung weight
- lower profile of front wheels (more aerodynamic)
- Climbs large obstacles (compared to wheel size) with all wheels in contact with floor (works at slow speeds)
- Rocking of the rover body is the average of the side movements.
- Less susceptible to side tipping
- No springs needed
- Equal force distribution on wheels.
- Extensive documentation
Cons:
- heavier
- more complicated steering, drivetrain, suspension
- Requires 1 motor per wheel
- Unstable at high speeds (damage to arms, suspension speed) and less effective traction.
4-Wheel Design
Pros:
- lighter
- simpler design
Cons
- (pretty much all the Rocker Bogie Pros)
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