Mega Hydraulic Arm

Description

Discover the science of hydraulic power by building a multi-axis robotic arm that runs on water. The Mega Hydraulic Arm uses water pressure instead of motors, so children can see how pushing liquid in one place creates movement somewhere else.

Once assembled, the arm moves on several axes, and children can practise controlling each movement. It is a satisfying build that shows the same principle used in diggers, cranes and car brakes.

• Build: a multi-axis hydraulic robot arm
• Power: water
• Learning areas: physics, engineering, hydraulics