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 Crawler S is based on a Mercedes-Benz Unimog U4023 chassis and boasts a carbon fiber camper module, blending rugged ...

This crawlspace crawler FPV robot is a fairly simple build. [Jeff G] bought a boxy chassis kit with frame, motors, and wheels, mounted lights and camera, and we get to see it in action (video ...

They sit on 16-inch wheels and help to raise ground clearance ... effectively turning first and second gears into crawler gears. Porsche says top speed in 7th is about 60 mph.