Page 239 - LEGO MINDSTORMS - Robotics Invention System-2 Projects

Robot 8 • The ULK (Useful LEGO Knowledge)

Caster Step 3

Caster Step 4

ULK’s first caster mount had the #10 axles
spaced one stud apart, but the weight of the
robot caused the axles to bend, tilting the
caster pivot slightly. To solve for this, the cams
allow the mounting axles to be spaced two studs
apart, resulting in less bending force applied to each axle. The
improved caster has almost no tilt and tracks significantly better.

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