'PET Robotic Arm' Micro:bit Project

Research shows that only 25% of the plastics we used are recycled.

More than 6 billion tons have been thrown away or incinerated, making the planet sick.

I made a robot arm by recycling waste plastic and made a plastic bottle robot arm so that I could use the robot arm to have fun picking up and disposing of garbage.

Electronics :

• servo motor
• Battery
• micro:bit SOKIT

Other Supplies:

• PET bottle

• Stapler

• Rubber band

• Double-sided tape

• Draw a pattern on the plastic bottle in the shape of tongs.
• Cut the plastic bottle with scissors or a knife

• Cut the remaining part of the PET bottle into lengths of 1cm*5cm.
• Connect the pieces together with a stapler to make a 10cm stick (2 pieces).
• Put the two sticks in contact and fix half of the sticks with a stapler.
• Check if it has a'Y' shape.

• Use a piece of plastic bottle to make an'I' shape support of 0.6cm * 3cm.
• Connect the'Y' shape support and the'I' shape support with a stapler.
• Check that the'I' shaped support moves like an arm joint.

• Make a rectangular [1cm * 3cm] hole on the top of the plastic bottle tongs.

• Insert the'Y' support into the plastic bottle tongs and pull out the'I' support through the square hole.

• Connect the'Y' part with the plastic bottle tongs.

• Move the'I' support to see if the tongs work.

• Fix the servomotor horn to the'I' support using a rubber band.

• Insert the servo motor into the servo motor horn.

• Fix the servo motor to the plastic bottle with double-sided tape.

• Decorate it with paint or colored paper.

makecode