Problem statement:
A self-propelled independent vehicle that moves in a semicircle and then travels linearly for a minimum of 30cm.
Rules:
1. Minimum turn - at least a semicircle (≥180°)
2. The model should not spiral.
3. No electrical components are allowed.
an example of the required path type is attatched below:
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Designing a self propelled car with given specifications
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deleted-694757
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norman40
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Re: Designing a self propelled car with given specifications
Hi ramvriskh,
Sounds like a fun project. I'm assuming that you want to know how to get started with your engineering project.
You might try searching on line with key words like “self propelled model car” or “self propelled car project”. I'm sure you'll find some ideas to help you get started.
And you may want to take a look at the Science Buddies project guide to review the engineering project process:
https://www.sciencebuddies.org/science- ... cess-guide
I hope this helps. Please ask again if you have more questions.
A. Norman
Sounds like a fun project. I'm assuming that you want to know how to get started with your engineering project.
You might try searching on line with key words like “self propelled model car” or “self propelled car project”. I'm sure you'll find some ideas to help you get started.
And you may want to take a look at the Science Buddies project guide to review the engineering project process:
https://www.sciencebuddies.org/science- ... cess-guide
I hope this helps. Please ask again if you have more questions.
A. Norman
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deleted-694757
- Posts: 2
- Joined: Tue Feb 19, 2019 6:45 am
- Occupation: Student
Re: Designing a self propelled car with given specifications
I have seleted the the rubber band car model, but the problem is with the path mentioned. pls help me out.
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norman40
- Former Expert
- Posts: 1022
- Joined: Mon Jul 14, 2014 1:49 pm
- Occupation: retired chemist
- Project Question: Volunteer
- Project Due Date: n/a
- Project Status: Not applicable
Re: Designing a self propelled car with given specifications
Hi ramvriskh,
Yes, figuring out how to make the car follow the specified path makes this project much more interesting.
It seems to me that your car will need a steering mechanism and a way to change the steering angle. I'm sure that there are many ways to accomplish this. One concept is as follows.
The steering mechanism could be a pivoting axle. Steering angle could be set with a lever. One position of the lever would steer in a circular path while another lever position allows travel in a straight line. The lever position might be changed using the rubber band that propels the car. Rubber band tension could hold the lever against the steering axle. When the tension is released the lever moves away from the axle.
What are other some ways that you can combine the steering and propulsion mechanisms to make the car follow the path? I'm sure that you can think of several good design concepts. When you've defined some concepts, you might try building a couple of prototypes to see which idea works best.
I hope this helps. Please ask again if you have more questions.
A. Norman
Yes, figuring out how to make the car follow the specified path makes this project much more interesting.
It seems to me that your car will need a steering mechanism and a way to change the steering angle. I'm sure that there are many ways to accomplish this. One concept is as follows.
The steering mechanism could be a pivoting axle. Steering angle could be set with a lever. One position of the lever would steer in a circular path while another lever position allows travel in a straight line. The lever position might be changed using the rubber band that propels the car. Rubber band tension could hold the lever against the steering axle. When the tension is released the lever moves away from the axle.
What are other some ways that you can combine the steering and propulsion mechanisms to make the car follow the path? I'm sure that you can think of several good design concepts. When you've defined some concepts, you might try building a couple of prototypes to see which idea works best.
I hope this helps. Please ask again if you have more questions.
A. Norman

