Constructions that have 3D Live Interactive animations.
Active robot attachment for the LEGO Mindstorms EV3 Box robot chassis. The attachment is placed on the top of the robot and uses a system of two gear wheels to transfer the motion to a lever and to .... lift things.
When you need a LEGO robot attachment to lift heavy things on the competition field. Probably at FIRST LEGO League or World Robotics Olympiad. This attachment uses 4-5 gear wheels to lift a heavy object.
Build with LEGO Mindstorms EV3 parts.
This construction demonstrates one way of using а rack with a gear wheel. It allows to turn circular motion in to a liniar one.
This is the Little Truckie, but upgraded with an arm so it can teach you to be a good driver with lager number of controls. Now you can drive it and lift things at the same time.
The programs for controlling Truckie are at:
Truckie - Easy To Drive VEX IQ Program for Modkit
Truckie Hard To Drive VEX IQ Program for Modkit
Advanced Truckie - Easy To Drive Advanced VEX IQ Program for Modkit