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3D model description

This is an educational robot intended to be used as a sniffer or line follower.

It has been designed to attach other components such as servos, LEDs, push buttons, a buzzer, and other sensors included in the product "Mi primer kit de robotica" ("My first robotics kit") distributed by bq.

BOM (see attached image)

Printed parts:
1 x chassis
1 x battery holder
2 x wheel
1 x sniffer

15 x M3x10 screw
2 x M3x40 screw
16 x M3 nut
2 x 3x50mm O-ring
8 x AAA batteries

Parts included in "Mi primer kit de robotica" by bq:
1 x Freaduino UNO (Arduino UNO derivative)
2 x IR sensors for line following
2 x continuous servo rotation
1 x 8 AAA battery holder
1 x Bluetooth Module (optional)

3D printing settings

Build Instructions

See the attached pdf (in Spanish). Pictures are clear enough to follow the steps even if you do not understand Spanish.

Check this video:

Example code

Attached you will find a simple Arduino program for following a line ("Arduino_renacuajo_line_follow.ino").


Now you can control your robot through the "RoboPad" app.

So just upload the "Arduino_robopad_renacuajo.ino" into your robot, connect the Bluetooth Module and install the Android app:

Youtube trailer:

  • 3D model format: STL and ZIP



BQ es una de las principales tecnológicas europeas. Su objetivo es ayudar a las personas a entender la tecnología, animarles a utilizarla e inspirarles a crearla. BQ aplica esta filosofía a sus dispositivos (smartphones, impresoras 3D o robótica, entre otros) y trabaja para hacer de la tecnología una herramienta que mejore el mundo y la vida de sus usuarios.

BQ is one of the leaders in European technology. Their objective is to help people understand technology, inspire them to use it and develop it. BQ applies this philosophy to its products (smartphones, 3D printers, and robotics, amongst others), working towards making technology a tool that improves the world and the life of their users.

All the things and all the published material cannot be considered as a final product of BQ and BQ takes no responsibility of its use.

It must be considered as an experimental and early released product developed with the intention to share it and test it as soon as possible within the community.

Final release of all products will be published on and



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