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

Introduction Brief

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- exampleof a completed vehicle.

Rollabuggy Construction

Chassis IdeasThe 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.

Different ways to attach the rubber bands from the motor to the tin can.

The first configuration can make use of the steering mechanism by omitting the front can and replacing it with a single wheel.

Rubber Bands also supply traction.

SteeringThe vehicle turns when it goes in reverse.

Forward – friction pushes wheel back against rear stop, vehicle goes straight

Reverse - friction pushes wheel

against front stop – vehicle turns

Under side view of the steering.

Motor is attached here with a metal strap.Can you think of other waysto attach the motor?

A welding rodis used here foran axle. A coathanger or a longnail will alsowork.

Underside view

Is this section of the chassis necessary?

You can choose to have yourbatteries attached to the Buggy

or at the Controller.

Remote Controller

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

Remote Control

Top views

To power supply

Elastic bands

Top View of controller

Rubber Bands are missing on this controller.They are notnecessary. This is a battery snap

for a 9 volt battery. YouCan wire directly to yourPower supply.

Make wire connections to motor here.

Remote Control Construction

To motorUnder side views

Underside View of Controller

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