Mechanum wheels are great, but you have to have them perfectly alined or they come across a little clunky, giving your robot a herky-jerky movement. Robotics educator and supreme LEGO builder ...

The toymaker is using discarded fishing nets and engine oil as ingredients in the 300 million “tires” it makes per year.

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Reaction wheels are useful things ... and [Brick Experiment Channel] decided to build one out of LEGO to control an inverted pendulum. The initial design using a small LEGO wheel on an inverted ...