Cubelets Boundless Builder

Spark the next generation of innovators!

Fuel curiosity and computational thinking with Cubelets‚® robot blocks.  Cubelets are made by Modular Robotics in Boulder, Colorado, USABy combining Sense, Think, and Act Cubelets, kids and adults can create simple reconfigurable robots that exhibit surprisingly complex behavior. 

Cubelets is an award winning, teacher trusted STEM tool.

STEM Teacher, Beth Spearman discusses Cubelets, her “ABSOLUTE FAVORITE DEVICE” in her STEM lab and describes how it works in this Video.

The largest Cubelets set, the Inspired Inventors Pack is perfect for makerspaces, libraries, museums, classrooms, and all educators who know students can’t get enough of Cubelets.
Designed for six to twelve student groups, everyone has a chance for in-depth exploration of robotics, STEAM, and computational thinking. Includes 156 SENSE, THINK, and ACT Cubelets, and the Bluetooth® Hat for pairing with the free iOS, Android, and FireOS compatible companion app to program, remote control , or even change the way your Cubelets robots behave with the Personality Swap™ feature.

Develop Problem-Solving skills and Computational Thinking. Spark the next generation of innovators by introducing procedural thinking, cause and effect, decomposition of complex tasks, pattern recognition and the ability to notice similarities or common differences, abstraction and algorithm design and the ability to develop a step-by-step strategy for solving a problem, all using Cubelets robots.

You don’t need to know how to code or wire to construct robots with Cubelets. Snap the robot blocks together and the magnetic faces do the rest. Every unique arrangement is a new robot with novel behaviors emerging from the construction. Invention made easy.

By combining Sense, Think and Act Cubelets, kids and adults can create simple reconfigurable robots that exhibit surprisingly complex behavior. Cubelets are magnetic blocks that can be snapped together to make an endless variety of robots with no programming and no wires. You can build robots that drive around on a tabletop, respond to light, sound, and temperature, and have surprisingly lifelike behavior. But instead of programming that behavior, you snap the cubelets together and watch the behavior emerge.

Endless Possibilities, Endless Fun, Endless Learning. Unlock Your Students’ Potential, today!

There’s no wrong way to build with Cubelets, so it is remarkably easy to transform these blocks into brilliant bundles of robotic curiosity.


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Assembled for eager inventors, the Brilliant Builder Pack includes 19 SENSE, THINK, and ACT Cubelets®. Designed to support a single student group, this pack has tons of building options as students complete challenge after challenge. Also included are Brick Adapters, a micro-USB charging cable, and durable storage.

Includes 19 Cubelets: 1 each of Battery, Bar Graph, Blocker, Brightness, Flashlight, Inverse, Knob, Maximum, Minimum, Passive, Speaker, Temperature, and Threshold Cubelets. 2 each of Distance, Drive, and Rotate Cubelets. 

Plus:4 Brick Adapters, 1 Charging Cable, and 1 Clear Storage Tub.


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