FREE LEGO: On March 9, build a Lego Steering Wheel model at participating stores and take it home with you for free. Find participating stores here. Lego has been particularly generous lately.
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 initial design using a small LEGO wheel on an inverted pendulum was only able to work reliably over a 4-degree angle from the vertical. Upgrading the wheel to a larger, heavier one enabled the ...