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TEAM 8

TEAM 8. Tom Darley Xiaofan Deng Irene Dongol Constance Gong Samantha Shen Samuel Zhao. Problem Statement. Design a system of space travel that is: Safe – for occupants and spectators Environmentally friendly - runs on solar energy - constructed with materials of no commercial value

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TEAM 8

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  1. TEAM 8 Tom Darley Xiaofan Deng Irene Dongol Constance Gong Samantha Shen Samuel Zhao

  2. Problem Statement • Design a system of space travel that is: • Safe – for occupants and spectators • Environmentally friendly • - runs on solar energy • - constructed with materials of no commercial value • Self-functioning • Able to ascend and descend a 7m tether • Within the size limit of 600mm x 600mm x 600mm

  3. Our Design

  4. Mechanics • What does it do • The mechanical aspect of the project encompasses the drive system which is the backbone of the movement. • Within this system the gears manage the energy output from the motor and control the torque as well as speed of the system.

  5. Rationale for choice • Gearing Ratio to favour Torque or Speed? we decided on torque rather than speed for several reasons ; • increased torque • higher speed could risk slippage • Our drive system is designed in an angled orientation • reduce the overall size of the vehicle • contributed to a centre of mass closer to the centre of the elevator • Choice of wheels or tank treads as the central contact point • addition of free spinning guide wheels as another means of increasing balance and stability .

  6. How did you make it ? - Combination of existing resources with other materials. - Lego as a major resource / material > modifications made to existing Lego parts as a means of Integrating the two components of the system

  7. Solar collection & Electronics • What does it do in relation to the project • How did you make it • Rationale for choice, Data and Demonstration • Connection method of two solar panels • Electric circuit

  8. Solar Collection & Electronics • How Did we make it? • Product Circuit Board • Solder

  9. Rationale for choice, Data and Demonstration • Connection method of two solar panels • Connect two panels in parallel • Electric circuit • Type of switches • LED

  10. I-V data of two connection methods • Reasons for connect panels in parallel • Both two connection methods the max powers are similar • From the data sheet of motor, its working voltage is between 1.5 – 4.5V and the working current is between 0.15 to 1.4 A

  11. Electric Circuit Diagram S 1: A single-pole double-throw switch button which is used to control the whole circuit. S 2 1 5 2 + 3 Solar panels S 2: A double-pole double-throw switch button on the top of elevator, used to change the direction of current. - 4 6 RL Motor Red LEDs: indicator lights. One of them will be bright when the device is off Red LEDs S 1

  12. Chassis • The relationship with regards to our project . • Rationale of choice.

  13. Computer-Aided Design

  14. Conclusion • Evaluation • Strengths: • Solid chassis • Simplistic design • Possible improvements: • Stronger materials and construction techniques • Wheel mechanics • Gearing • Types of wheels

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