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PrintBot Beetle

3D model description

The PrintBot Escarabajo is an educational robot that can follow lines, search for light, and grab objects with its claw.

You can see it in action at

The robot has been designed to attach other components such as servos, LEDs, push buttons, a buzzer, and other sensors included in the product "My first robotics kit" distributed by bq.

3D printing settings

Printed parts:

You will need to print one copy of each, except for the following:

4 x screw_cover

2 x wheel_front

2 x wheel_rear


7 x M3x10 screw

1 x M3x12 screw

8 x M3x16 screw

2 x M3x25 screw

2 x M3x35 screw

14 x M3 nut

3 x M3 blocking nut

4 x 3x84mm O-ring

8 x AAA batteries

Parts included in "Mi primer robotica kit" by bq:

1 x Freaduino UNO (Arduino UNO derivative)

2 x IR sensors for line following

2 x LDR sensors

2 x Continous Rotation Servo

1 x Miniservo (ES08A / SG90)

1 x 8 AAA battery holder

1 x Bluetooth Module (optional)

Build Instructions

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

Example code

Attached you will find two simple Arduino programs ("Arduino_escarabajo ..."). One follows a line and the other searches for the brightest spot.


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

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

Youtube trailer:


This thing and all other published material can not be considered as a final product of any of its uses.

It should be considered as an experimental and early release product developed by the Innovation and Robotics Department staff with the intention to share and test it as soon as possible within the community.

Final releases will be published on

  • 3D model format: STL and ZIP





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