Mechanical toy

  1. Hello, I need to build a toy car, that will perform the following task:
    Go in a staight line for 5 meters, then follow a semi-circunference (or just turn 180 degrees, but not a about-turn) and go back another 5meters, the turning is around a cone:

    _____________________________________ ---> boundaries

    ------------>------->-------\


    -------------------cone ---> 0 |


    ----------< -----------<----/

    _____________________________________

    I am supplied with a electrical engine, and 3 1.5V batteries, I am not allowed to use any other power source, however I can use pretty much any mechanical or electical device I desire (no remote controls, the car needs to perform on it's own)

    I am aware that this is a very simple task, for engineering, but I am in my 1st year and have pretty much only had mathematical classes (calculus, linear algebra, phisics, computing etc) so I am not familiar with the electrical circuits that may accomplish this task....have been brainstorming mechanical solutions for a while now, but nothing really good has come up..

    The problem is that the car needs to have 2 operating "modes" : go straight -- turn...and I need to be able to switch between these modes...

    Any suggestions would be very welcome :)
     
  2. jcsd
  3. DaveC426913

    DaveC426913 16,226
    Gold Member

    1] You could stick a long bar out the right side of the car that hits the cone and do a sharp turn - Batmobile-style. Just an idea for thinking outside the box.

    2] You could use a cam to control the steering (see attached).
     

    Attached Files:

  4. can u send it via pm?i cant see the image...explain more on the 2nd way...seems intresting..
     
  5. Use the motor to drive the car and use it so that it turns the tires on 2 different sides in such a manner so that at the right time they turn in opposite direction and you can make a 180 degree turn. Think about how a Tank turns....:wink:
     
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