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Active Time
30-45 minutes
Total Project Time
30-45 minutes
Key Concepts
robotics, circuits
Two bristlebots side-by-side

Introduction

Do you think you could build a robot on the head of a toothbrush? Bristlebots are simple, tiny robots that buzz around like bugs. They are easy to build and fun to play with, and you do not need any previous experience with robotics to make one. You can even build two bristlebots and race them against each other! Move on to the Materials section to see what parts you need to build bristlebots, and the instructions for step-by-step directions on how to build them.

Credits

Ben Finio, PhD, Science Buddies

This project is based on Bristlebot: A tiny directional vibrobot by Evil Mad Scientist Laboratories.

This activity is not appropriate for use as a science fair project. Good science fair projects have a stronger focus on controlling variables, taking accurate measurements, and analyzing data. To find a science fair project that is just right for you, browse our library of over 1,200 Science Fair Project Ideas or use the Topic Selection Wizard to get a personalized project recommendation.
Next: Materials

Materials

  • Bristlebot Robotics Kit, available from our partner Home Science Tools. You will need these parts from the kit:
    • Coin cell battery
    • Vibration motor
  • You will also need the following materials, which are not included in the kit:
    • Toothbrush head with the handle cut off
    • Small piece of double-sided foam tape
    • Scissors
  • Note: The kit includes enough parts to build two bristlebots, and two other types of simple robots. See the kit instructions page for details.

Disclaimer: Science Buddies participates in affiliate programs with Home Science Tools, Amazon.com, Carolina Biological, and Jameco Electronics. Proceeds from the affiliate programs help support Science Buddies, a 501(c)(3) public charity, and keep our resources free for everyone. Our top priority is student learning. If you have any comments (positive or negative) related to purchases you've made for science projects from recommendations on our site, please let us know. Write to us at scibuddy@sciencebuddies.org.

Next: Instructions

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Active Time
30-45 minutes
Total Project Time
30-45 minutes
Key Concepts
robotics, circuits
icon scientific method

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