Page 120 - Robotics and AI class 10
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With your 3D-printed car chassis in hand, it's time to assemble the final race car. Follow the provided instructions
and utilise your problem-solving skills to bring together all the components. Once assembled, it's time for the
most exciting part - testing your creation! Prepare for some thrilling races and measure the performance of your
race car against your team's objectives.
1. Once you have 3D printed the car chassis and all the necessary components are ready, it's time to assemble
the car and test its performance. This step will help you evaluate how well your design functions and identify
areas for improvement.
2. Begin by gathering all the printed parts, motors, wheels, axles, and other components needed for the assembly.
Make sure you have the necessary tools, and any adhesives required for securing parts together.
3. Start assembling the car by attaching the hobby motor to the designated area in the car chassis. Ensure that
the motors are properly aligned and firmly secured in place.
4. Install the axles into the axle holders on the car chassis. If you used straws as axle holders during the prototyping
stage, slide the axles into the straws. Ensure that the axles are straight and rotate freely without any friction.
5. Mount the wheels onto the axles. Depending on your design, you may need to use additional components
such as washers or spacers to ensure proper alignment and stability. Make sure the wheels are securely
attached and can rotate smoothly.
6. Connect the wiring from the motors to the appropriate terminals on the battery holder or power source.
Double-check the connections to ensure they are secure and that the polarity is correct. Use tape, soldering,
or connectors to ensure reliable electrical connections.
7. Before testing, ensure that the batteries are fully charged or have sufficient power. Insert the batteries into
the battery holder and switch on any additional components like switches or LED lights, if applicable.
8. Find a suitable location for testing your car, such as a smooth surface table, hallway, or race track. Ensure
that the area is clear of obstacles and provides enough space for the car to move freely.
9. Turn on the power source and observe the car's performance. Note how fast it moves, how straight it drives,
and any vibrations or issues you observe. Encourage team members to record data during the testing
process.
10. Collect data that will help you evaluate the car's performance and guide modifications to the design. The
useful data to collect includes speed measurements using a stopwatch or measuring distance covered
within a specific time frame. You can also record any observations regarding stability or potential areas for
improvement.
11. Analyse the collected data and discuss it as a team. Identify any areas where the car's performance did not
meet your expectations or any design flaws that need to be addressed. Consider any modifications to the
design, such as adjusting weight distribution, changing wheel size, or improving aerodynamics. All these
could improve the performance.
12. Based on the data analysis, make informed decisions about the necessary modifications to the car design.
Discuss potential design changes and collaborate as a team to implement these modifications effectively.
13. If needed go back to your 3D chassis design and make modifications and repeat the testing and data
collection steps.
By assembling and testing the car, you will gain valuable insights into its performance and identify areas
for design optimisation. Collecting data and analysing it critically will help you make informed decisions
about necessary modifications. Remember to document your findings and use them to drive iterative
improvements in your car design.
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