Pedro 2.0 - Your Gateway to STEAM Education

by Almtzr in Workshop > 3D Printing

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Pedro 2.0 - Your Gateway to STEAM Education

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Meet Pedro, the revolutionary robotic arm designed for STEAM education and ready to transform your DIY projects! Fully 3D-printed and built for ease, Pedro requires no tools or screws just snap it together and you’re ready to start learning and creating.

Pedro robot offers three control modes: manual mode directly from the Pedro board, remote mode via a remote controller equipped with an NRF24L01 2.4GHz module, and serial USB control connected to a computer.

Here’s why Pedro is your perfect STEAM companion:


  1. Equipped with 4 SG90 360° servomotors coupled with planetary gear systems, Pedro delivers smooth, precise movements.
  2. Bearing balls provide extra fluidity, making Pedro perform like a pro.
  3. Built with a programmable, Arduino-compatible board, Pedro is perfect for learning coding, engineering, and robotics, making it ideal for STEAM education.
  4. Powered by a rechargeable 8.4V DC battery, Pedro gives you hours of action, with a battery level indicator so you never run out of power unexpectedly.
  5. With the NRF24L01 module, Pedro offers wireless, remote control for a hands-on learning experience.
  6. A USB port handles both charging and programming, making it super convenient for students and makers alike.


Visit the Pedro GitHub page to download the .STL files, get more details, and create your own Pedro.

Supplies

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Everything you need to bring the Pedro robot to life:

  1. 4 Servomotors 360° SG90
  2. Pedro board
  3. Micro USB cable
  4. 2 Batteries 3.7V 15000mA
  5. 2 Ball bearings

Planetary Gear Systems

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Assemble the three planetary gear systems as shown, and verify the rotation of each.

Board and Battery

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  1. Place the Pedro board on the base and connect it to the battery.
  2. Ensure that the board powers on.
  3. Insert the servomotor for the base rotation and connect it to pin D5 on the board.

Forearm

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Insert the second servomotor into the elbow piece and the third servomotor into the gripper piece. Then, connect the elbow and gripper using the link arm piece, as shown.

Arm and Forearm

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Attach the forearm to the upper arm by connecting the elbow joint to the shoulder piece as shown.

Assemble Gripper

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Mount the two planetary gear systems onto the elbow and shoulder servomotors. Then, attach the gear arm piece to complete the assembly as shown.

Gripper

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Attach the gear to the gripper servomotor, then position the two gripper pieces as indicated.

Arm Suppport Base

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Secure the support base to the arm beneath the elbow piece with screws.

Connect Arm and Base

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Complete the arm by covering the side with the servomotor cables, then secure the arm to the base with the four screws as shown.