How to build a pulley car.
How to build a sturdy one-motor car.
Building smart structures with the RCX building system. Includes full instructions on how to build:
4) Putter (for golf)
5) Conveyor Belt
How to build a toggle joint with the RCX building system.
How to build an optical illusion using the RCX system.
How to build a snail car.
Build a bug using the RCX system.
How to build train wheels with the RCX system.