Design a forwardmoving, backward moving, steerable,

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Rollabuggy
Introduction Brief
Design a forward-moving, back-ward moving,
steerable, hand operated, electrically-controlled
vehicle with materials available to you.
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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.
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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.
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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.
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Steering
The vehicle turns when it goes in reverse.
Forward friction pushes wheel back against
rear stop, vehicle goes straight
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Reverse - friction pushes wheel against front
stop vehicle turns

Under side view of the steering.
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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.
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Is this section of the chassis necessary?
You can choose to have your batteries attached to
the Buggy or at the Controller.
Underside view
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Remote Controller
The remote control is actually a two way switch.
It can control the Rollabuggy in forward and
reverse direction.
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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.
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Remote Control Construction
Under side views
To motor
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Underside View of Controller
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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