Cutus wirii

Our latest robot is called ‘Cutus wirii’.

This is a very simple servo-driven robot that is autonomous. His computer is an Arduino.

Wiring
Wiring

The main chassis is plastic, cut with a dremel.

The servos are attached with a kind of aluminium clamp. He has a ball bearing at the back as a third wheel.

Back wheel
Back wheel and aluminium clamps

 

Two short-range infra-red sensors and a 9 V battery pack complete the rest of the electronics.

Robot from the front
Robot from the front, showing sensors

He is a very successful robot. His programme comes from another robot we made a while ago, with just a tiny bit of changing to the code.

Detail of wiring
Detail of wiring

One wheel turns backwards and the other forwards, when he encounters an object, which makes him turn away.

One of the two main wheels
One of the two main wheels

Some of our older robots are here and here.

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Skitterbot

I made this little guy from various pieces and electronics we had, and the motor from an old toy car.

The skitterbot has a face
The skitterbot has a face

The piece of alligator clip on the end unbalances the motor as it moves, and makes the bot move around. It doesn’t have to be an alligator clip, that’s just what I had.

zeplora skitterbot IMG_9499
Closeup of the motor
The whole skitterbot.
The whole skitterbot.

He really goes: