Cardboard Crocodile

A robotic crocodile that moves the top jaw like a real crocodile, with an IR sensor to detect objects in front of it. When the sensor picks up something nearby, the crocodile’s top jaw moves up and down, just like a real one. This cool mix of technology and motion makes the robotic croc seem alive, reacting to what’s around it.

-Cardboard

-Invisible Tape

-Hot glue

Grab a cardboard and cut two sides about 14.5 cm of width and 7 cm of length for the side of the crocodile and then cut another about 7.8 cm of length and 10 cm of width to make the front and back and lastly you would need to cut about 13.7 cm of width and 9.5 cm of length to have the top of the crocodile body. And from there you would hot glue all the body part to have the whole body of the crocodile while also have one side missing a cardboard which the circuit will be at.

To make the jaw you will need to cut a piece of cardboard about 9.5 cm of width and than 9.7 cm of length and from there, cut another piece of cardboard about the same size of a ruler and than to make the tooth cut about 5.3 cm of width and than cut it like the picture of the tooth look like.

To make the eyes you will need to cut a piece of cardboard about 10.3 cm of width and than cut the cardboard to make that curve for the side fo the eyes. And than cut another piece of cardboard to make the eyes about 9.3 cm of width and 13 cm of length and than a the end of the cardboard fold it a bit so you could hot glue it to the side, and later cut another piece of cardboard to create the bottom of the eyes so you could hot glue it to the crocodile and it should look like the picture at the end.

To make the tail of the crocodile you will need to cut a piece of cardboard about 7 cm of width and from cut the cardboard for the tail to give it that curve remember to make 2 of these, and then cut a piece of cardboard and hot glue it to the curve of the tail and cut another piece of cardboard to give it support for the bottom and lastly make a cube to hot glue the front of the tail to place it at the back of the crocodile