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SumoBot http://lm095sumobot.wordpress.com/. Dónal Carty – 10093796 Ian O’Donoghue – 10128697 Kieron McCabe – 10096892. Large tire width and diameter = Greater Traction. Wheels at the rear: difficulty with steering/movement. Keep wheels in a central position.
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SumoBothttp://lm095sumobot.wordpress.com/ Dónal Carty – 10093796 Ian O’Donoghue – 10128697 Kieron McCabe – 10096892
Large tire width and diameter = Greater Traction Wheels at the rear: difficulty with steering/movement. Keep wheels in a central position. Wedge design at front of robot may lift opponents wheels off surface – reduces traction. SumoBot Should contact the ground in multiple points. This gives a balanced robot. High centre of gravity – easy to topple. Flat tires? Rubber will cover larger surface area – Traction!
Ultrasonic sensor range: 14 degrees • We took the cone of vision of our ultrasonic sensors into account. This is a very important aspect of the design as it will decide whether or not we can locate our opponent. • We will position our Ultrasonic Sensor at the front of our robot, inclined at 7 degrees to the vertical plane. • This will give us maximum range to find our opponent.
Design Idea 1- Wedge • Pros: • Instead of just pushing the opponent out of ring it could also flip them over. • Could get partially under the opponent raising it slightly off the ground therefore reducing their traction. • Large tire diameter/thickness: greater traction. • Cons: • Wheels vulnerable to attack from sides. • Problematic steering/movement • Basic
Design Idea 2 - SpiderBot • Pros: • Aesthetically pleasing. • Wedge shaped – lifts opponent, reducing traction • Balanced: Two points of contact with ground (wheels, business end) • Cons: • No attack/defence mechanism • Enclosed PCB – Overheating?
Design 3 • Pros: • Wedge shaped – lifts opponent, reducing traction • Balanced: Two points of contact with ground (wheels, business end) • Low centre of gravity • Large tire diameter/width = Greater traction. • Very good attack/defence idea – Pneumatic Ram system • Cons: • Enclosed PCB board – over heating • Pneumatics – very heavy • Easily pushed from ring
A simple gear train Chosen Design Light Sensors PCB board Ultrasonic Sensors
Rationale • Low weight and simple design to optimise speed and power • 4 wheels = greater traction • Compact design • Low centre of gravity – difficult to topple • Ultrasonic sensors positioned to optimise cone of vision • PCB open to air – minimises problem of overheating