Lego NXT Mega Stair Climber
If you are small, stairs are a formidable challenge. If you are big, stairs are a minor inconvenience. Nothing but a ramp with bumps. This is Version 1. Not steerable, since there is a single drive axle to keep the tracks synchronized, prevent oscillations, and thus keep the track from tearing apart. Perhaps some day we'll find time for a steerable version with dynamic tension on the tracks. The shape was inspired by a World War I tank.
If you are small, stairs are a formidable challenge. If you are big, stairs are a minor inconvenience. Nothing but a ramp with bumps. This is Version 1. Not steerable, since there is a single drive axle to keep the tracks synchronized, prevent oscillations, and thus keep the track from tearing apart. Perhaps some day we'll find time for a steerable version with dynamic tension on the tracks. The shape was inspired by a World War I tank.
