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Build a Bristlebot, a Tiny Toothbrush Robot

by Ben Finio, PhD
Active Time
30-45 minutes
Total Project Time
30-45 minutes
Key Concepts
robotics, circuits
bristlebots racing

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 tab 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 1,150 Science Fair Project Ideas or use the Topic Selection Wizard to get a personalized project recommendation.

Materials

These specialty items can be purchased from the Science Buddies Store:

  • Bristlebot kit (1). To build a single bristlebot, you will need these parts from the kit:
    • Coin cell battery with leads (1)
    • Mini vibration motor with leads (1)
    • Note: The kit includes enough electronics to build two additional types of simple vibrating robots. See the kit instructions page for details.

You will also need the following materials, which are not included in the kit:

  • Toothbrush with slanted bristles
  • Double-sided foam tape
  • Scissors
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Active Time
30-45 minutes
Total Project Time
30-45 minutes
Key Concepts
robotics, circuits