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Design a forward-moving, back-ward moving, steerable,

Rollabuggy. Introduction Brief. Design a forward-moving, back-ward moving, steerable, hand operated, electrically-controlled vehicle with materials available to you. Rollabuggy Construction. The following slides are intended as a guide for construction. Students

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Design a forward-moving, back-ward moving, steerable,

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  1. Rollabuggy Introduction Brief Design a forward-moving, back-ward moving, steerable, hand operated, electrically-controlled vehicle with materials available to you.

  2. Rollabuggy Construction The following slides are intended as a guide for construction. Students are encouraged to come up with their own creative solutions other than offered here and substitute materials that are available to them. Figure- example of a completed vehicle.

  3. Chassis Ideas The frame of a vehicle is called a chassis. Design one or modify that meets your needs and materials available to you. The Rollaguggy uses a tin can for wheels and as a pulley to attach a rubber band to. These examples do not steer.

  4. Different ways to attach the rubber bands from the motor to the tin can. Rubber Bands also supply traction. The first configuration can make use of the steering mechanism by omitting the front can and replacing it with a single wheel.

  5. Steering The vehicle turns when it goes in reverse. Forward – friction pushes wheel back against rear stop, vehicle goes straight

  6. Reverse - friction pushes wheel against front stop – vehicle turns Under side view of the steering.

  7. Motor is attached here with a metal strap. Can you think of other ways to attach the motor? A welding rod is used here for an axle. A coat hanger or a long nail will also work.

  8. Is this section of the chassis necessary? You can choose to have your batteries attached to the Buggy or at the Controller. Underside view

  9. Remote Controller The remote control is actually a two way switch. It can control the Rollabuggy in forward and reverse direction.

  10. Remote Control Top views To power supply Elastic bands

  11. Make wire connections to motor here. Top View of controller Rubber Bands are missing on this controller. They are not necessary. This is a battery snap for a 9 volt battery. You Can wire directly to your Power supply.

  12. Remote Control Construction Under side views To motor

  13. Underside View of Controller

  14. Click on the picture to view a movie of the Rolla buggy in action. The rod standing straight up is to help prevent the wires from tangling

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