Mecatronic Tortoise





Introduction: Mecatronic Tortoise

Hi This time I will show you how I did the Tortoise. It was easier to be done because it has a simple movement to collect and stretch the neck.

This was an animal I made for the presentation of my daughter because it also represents one of the most smuggled animals and also suffer a lot of abuse. When buying one of these, make sure you know where the animal originated. Otherwise you probably will be financing and encouraging the smuggling of wild animals.




Step 1: Materials:

- Figure of the Tortoise (free):

- 8 sheets of A4 paper (the file is only two but I need to print in poster format, 4 pages per sheet for the sea turtle is a little bigger)

- Two wooden clothes pins

- Pieces of balsa wood * 3mm (Ferry because he had used but can be used cardboard 0.5 mm)

- A Styrofoam tray (those which are the slices of cheese on the market)

- A servomotor with a plastic coat hanger

- Two bolts with nuts and washers (of about 6 cm)

- A strip of  velcro (6 x 3cm)

- Programed Arduino, brotoboard, wires, batteries, servo lead Connection

- Glue, hot glue, instant glue, scissors, ruler, pliers, etc ...

Step 2: Assembling the Parts of the Tortoise

Paste the 8 leaves, cut, assemble the parts isegundo the order described below.

Paste the following pieces and book:

- 1.2 and 3

- 5:07

- 6:08

- 9

- 10

- 11

- 12

Note: no need to use the part number 4

Step 3: Mounting Base

Disassemble the clothe pegs and reserve one of the springs. The raccoon pieces of wood are the "bones" of the legs. I used a piece of foam board to put on your feet and glued with hot glue, the wood on them. Using the part number 8 ("belly"), measured the distance that would be one of the other leg and glued a piece of wood connecting them. Then measure the distance between the front and back legs, I cut and pasted the wood core, uniting all fours, forming the base.

Step 4: Putting the Servomotor and the Lever

I support and screwed the servomotor and then, with speed glue, pasted that amount in the "spine" of the tortoise. I made a rod-shaped handle that was used to transmit the motion of the servomotor to the head of the turtle. I called the stem to the crosshead of the servant with the aid of a spring clothespins that has been stretched with the help of pliers.

Dai, just paste the head of the tortoise at the tip.

Step 5: Final Assembly

The piece Nº 8 was glued down and pasted a few pieces of velcro on the hull and the legs of the tortoise, if there was a need for some maintenance. Dai, was enough to fit the hull.

Note: The lower hull is beginning to appear in the original file size.


#include <Servo.h>

Servo myservo; // criando o objeto servo
int pos = 0; // criando a variável de posição do servo

void setup()
myservo.attach(2); // Atribui o servo ao pino 2

void loop()

for(pos = 75; pos < 170; pos += 1) // rotina para mover o pescoço para fora do casco
delay(1000); // pausa de 1 segundo
for(pos = 170; pos>=75; pos-=1) // rotina para mover o pescoço para dentro do casco

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    You are not necessarily supporting animal abuse or smuggling by purchasing a tortoise. There are a wide variety of tortoise species in the world, some of which can be imported legally, and plenty of which are bred in captivity for sale as pets. You can purchase a captively bred tortoise, and thus not be taking animals from the wild, or supporting smuggling. Just make sure you know where the animal originated. Also, be sure you really want a tortoise. They're expensive, most grow large, and need lots of room and very specific care.

    Nifty instructable, anyway.

    2 replies

    Ya I agree!But its still a really cool project!

    Thanks to share those information with us!

    What a great idea! I went to the link to print the turtle and downloaded the pdf, but can't open the file without a password. SO sad.... can you help?

    1 reply

    Hi. There's no password needed. Its free. try again:

    That's great! My boys would love this so I might just have to give it a go. :)

    1 reply

    Thank you! Loved doing. I bet you will too.

    Great project! The turtle looks awesome.

    1 reply

    you included software code, but not any kind of controller in your parts list or instructions. what controller is being used? is it attached to the final model or do you just plug it in to the servo whenever you want to use it?

    1 reply

    Thank you. The problem was that I created this walkthrough at work and was late. I forgot to put the Arduino. Thanks for reminding me.

    This is awesome! Do you need any help embedding the videos into your intro step?

    1 reply

    No thanks. The problem was that I created this walkthrough at work and it had no access to youtube.